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Worksheets

Life Science Merged Grade 8

Total questions: 234

Worksheet time: 2hrs 14mins

Name
Class
Date
1.

What is the biggest function of the muscular system?

a)

to help digest food

b)

to help us move

c)

to help us breathe

d)

to help us remove waste

2.

What is the biggest function of the respiratory system?

a)

to pump blood

b)

to help us digest food

c)

to take in oxygen and release carbon dioxide

d)

to help us fight disease and infection

3.

Which of the following statements describes the function of the heart?

a)

The heart produces white and red blood cells.

b)

The heart controls the nervous system.

c)

The heart makes oxygen and carbon dioxide.

d)

The heart pumps blood throughout the body.

4.

Which system in the human body functions primarily to supply the blood with oxygen and remove carbon dioxide?

a)

excretory

b)

immune

c)

respiratory

d)

cardiovascular

5.

Which two body systems are primarily responsible for gas exchange between the body and the environment?

a)

skeletal and muscular

b)

circulatory and respiratory

c)

circulatory and digestive

d)

respiratory and excretory

6.

How does the respiratory system depend on the circulatory system in order to function?

a)

The circulatory system brings waste gases to the lungs and exchanges them for oxygen.

b)

The circulatory system provides structural support and protection to the respiratory system.

c)

The circulatory system pushes gases out of the body through the mouth and nose.

d)

The circulatory system sends messages to the lungs so that one can breathe in and out.

7.

How does the circulatory system depend on the respiratory system in order to function?

a)

The respiratory system removes bacteria from the circulatory system.

b)

The respiratory system produces circulatory system cells.

c)

The respiratory system delivers oxygen to the circulatory system.

d)

The respiratory system provides protection to the circulatory system.

8.

How does the circulatory system depend on the skeletal system?

a)

The skeletal system removes carbon dioxide from the circulatory system.

b)

The skeletal system produces blood cells in the bone marrow.

c)

The skeletal system is responsible for voluntary movement.

d)

The skeletal system helps to digest food for the circulatory system.

9.

Which two systems are responsible for voluntary movement?

a)

circulatory and excretory

b)

digestive and circulatory

c)

skeletal and muscular

d)

skeletal and circulatory

10.

What is the most important function of the digestive system?

a)

Gas exchange

b)

Break down food

c)

Voluntary movement

d)

Fight bacteria and disease

11.

What is the most important function of the excretory system?

a)

Break down food

b)

Pump blood

c)

Remove waste

d)

Voluntary movement

12.

Which is not an important organ in the excretory system?

a)

Bladder

b)

Large Intestine

c)

Esophagus

d)

Kidneys

13.

How do the circulatory and excretory systems work together?

a)

The circulatory system brings nutrients and oxygen so our cells can produce energy.

b)

The circulatory system brings blood to the kidneys to filter and remove waste.

c)

The circulatory system bring white blood cells around the body to fight infection and disease.

d)

The circulatory system helps the excretory system digest food.

14.

How do the skeletal and circulatory systems work together?

a)

The skeletal system produces red blood cells for the circulatory system.

b)

The skeletal system works with the circulatory system to help break down and digest food.

c)

The skeletal system provides structure for the muscles.

d)

The skeletal system protects the lungs and brain.

15.

How does the immune system depend on the circulatory system in order to function?

a)

The circulatory system produces antibodies used by the immune system.

b)

The circulatory system sends bacteria and viruses to the immune system.

c)

The circulatory system transports immune system cells throughout the body.

d)

The circulatory system protects the immune system from diseases.

16.

Which of the following statements describes the function of the small intestine?

a)

The small intestine transports blood to other organs.

b)

The small intestine helps digest food and absorbs nutrients.

c)

The small intestine releases carbon dioxide from the body.

d)

The small intestine produces cells needed for reproduction.

17.

Which of the following statements describes the function of bones?

a)

Bones store food for later use.

b)

Bones destroy foreign cells.

c)

Bones protect organs in the body.

d)

Bones send instructions to body parts.

18.

Which two systems work together to remove wastes?

a)

digestive and excretory

b)

respiratory and skeletal

c)

skeletal and circulatory

d)

digestive and respiratory

19.

Which two systems work together to break down and transport molecules?

a)

muscular and respiratory

b)

circulatory and skeletal

c)

digestive and circulatory

d)

endocrine and digestive

20.

Which system in the human body functions primarily to remove wastes from the body?

a)

immune

b)

urinary

c)

nervous

d)

muscular

21.

Why are plant cells capable of making their own food but not animals cells? Because of the presence of the

a)

mitochondria

b)

chloroplast

c)

cytoplasm

d)

nucleus

22.

Controls what comes into and out of the cell; found in plant and animal cells

a)

cell membrane

b)

chloroplast

c)

cytoplasm

d)

nucleus

23.

Gel-like fluid where the organells are found

a)

chloroplast

b)

chlorophyll

c)

pigment

d)

cytoplasm

24.

Control center of the cell; contains DNA

a)

mitochondria

b)

cell membrane

c)

nucleus

d)

chromatin

25.

Ridged outer layer of a plant cell

a)

chloroplast

b)

cell membrane

c)

chlorophyll

d)

cell wall

26.

Uses chemicals to break down food and worn out cell parts

a)

lysosomes

b)

ribosomes

c)

ER

d)

Golgi Bodies

27.

Assembles amino acids to create proteins

a)

mitochondria

b)

ER

c)

ribosomes

d)

Golgi bodies

28.

Produces the energy a cell needs to carry out its functions

a)

mitochondria

b)

ER

c)

Golgi bodies

d)

vacuoles

29.

Has passageways that carry proteins and other materials from one part of the cell to another

a)

mitochondria

b)

vacuole

c)

ribosome

d)

ER

30.

Stores food, water, wastes and other materials

a)

mitochondria

b)

chloroplast

c)

vacuole

d)

nucleus

31.

Receives proteins and materials from the ER, packages them and distributes them

a)

Golgi bodies

b)

ribosomes

c)

cell wall

d)

nucleus

32.

How can you tell that this is a prokaryote or eukaryote cell?

a)

It is a prokaryote because it doesn't have a nucleus

b)

It is a eukaryotic cell because it has a cell wall and a nucleus

c)

It is eukaryotic because it does not have a nucleus nor a cell membrane

d)

It is prokaryote because it has a cell wall

33.

What is the difference between mitochondria and chloroplast?

a)

Mitochondria produces energy and chloroplasts breaks down energy

b)

There is no difference. They are the same.

c)

Mitochondria breaks down energy from food and chloroplasts produce energy from sunlight.

d)

Mitochondria contains DNA and chloroplasts are green

34.

What does a plant cell have that an animal cell doesn't have?

a)

Cell Membrane and Cell Wall

b)

Cell Wall and Mitochondria

c)

Cell Wall and Nucleus

d)

Cell Wall and Chloroplast

35.
You might think of me as the trash collector, but recycler is maybe more accurate. What am I?
a)
mitochondria
b)
lysosome
c)
vacuole
d)
ribosome
36.
What is found in both plant and animal cells but is much larger in plant cells?
a)
Nucleus
b)
Mitochondria
c)
Chloroplast
d)
Vacuole
37.

What do you call the tiny cell structures inside a cell that carry out a specific function within the cell?

a)

Biomolecules

b)

Organelles

c)

Cells

d)

Atoms

38.

What do you call the eukaryotic cells that do not have a cell wall and are only surrounded by a cell membrane?

a)

Plant Cells

b)

Animal Cells

c)

Bacteria Cells

d)

Viral Cells

39.

Which type of cells have a membrane bound nucleus and membrane bound organelles?

a)

Eukaryotic Cells

b)

Prokaryotic Cells

40.
Using this image, what organelle is C?
a)
Cell Wall
b)
Mitochondria
c)
Large Cell Vacuole
d)
Chloroplast
41.

Which of the following do your genes affect?

a)

your ability to play soccer

b)

how your body grows and looks

c)

your ability to ride a bike

d)

the function of your circulatory system

42.

Your sister is very good at playing the piano. What is her piano playing ability an example of?

a)

a learned behavior

b)

an inherited trait

c)

a dominant gene

d)

a recessive gene

43.

What are recessive genes?

a)

strong genes that are in control

b)

genes that help you learn new things

c)

genes that you only get from your father

d)

weaker genes that hide when a dominant gene is present

44.

Which of the following is an inherited trait?

a)

using a computer

b)

freckles

c)

playing video games

d)

reading books

45.

The gene for brown eyes is dominant. What is needed in order for a person to have brown eyes?

a)

no genes for brown eyes

b)

two green eye genes

c)

at least one brown eye gene

d)

three brown eye genes

46.

What is a learned behavior?

a)

something you are taught or learn through experience

b)

a feature that you are born with

c)

traits and physical features that your parents pass on to you

d)

tiny sets of instructions inside every cell in your body

47.

What is true about learned behaviors?

a)

They determine which genes are dominant and which genes are recessive

b)

They control how tall or short you are

c)

They determine what color your hair and eyes are

d)

They make it possible for people to keep growing and learning new things

48.

Unicellular microorganisms which have cell walls but lack organelles and an organized nucleus, including some that can cause disease.

a)

bacteria

b)

eukaryote

c)

algae

d)

fungi

49.

The semipermeable membrane surrounding the cytoplasm of a cell.

a)

cell wall

b)

nucleus

c)

cell membrane

d)

vacuole

50.

Organelle found only in plant cells that provides structure to the cell.

a)

cell wall

b)

vacuole

c)

chloroplast

d)

cell membrane

51.

Organelle that performs cellular respiration and is known as the powerhouse of the cell.

a)

lysosomes

b)

golgi bodies

c)

nucleus

d)

mitochondria

52.

Organelle that is only present in plants and performs photosynthesis.

a)

cell wall

b)

vacuole

c)

chloroplasts

d)

nucleus

53.

Jelly like fluid that fills a cell and provides support for organelles.

a)

cytoplasm

b)

cytokinesis

c)

vacuole

d)

golgi bodies

54.

The organelle containing DNA that is the command center of the cell.

a)

mitochondria

b)

vacuole

c)

nucleus

d)

ribosomes

55.

Any process that living things use to actively maintain fairly stable conditions necessary for survival.

a)

homeostasis

b)

respiration

c)

life process

d)

reproduction

56.

Specialized structures within a living cell.

a)

organs

b)

tissues

c)

organ systems

d)

organelles

57.

Organelle that contains waste products and provides a storage area for a cell.

a)

nucleus

b)

vacuole

c)

mitochondria

d)

chloroplast

58.

Microscopic single-celled organism that has neither a distinct nucleus with a membrane nor other specialized organelles.

a)

cell

b)

eukaryote

c)

prokaryote

d)

unikaryote

59.

An organism consisting of a cell or cells in which the genetic material is DNA in the form of chromosomes contained within a distinct nucleus.

a)

cell

b)

eukarote

c)

prokaryote

d)

unikaryote

60.

An organism made of only one cell.

a)

multicellular

b)

complex

c)

unicellular

d)

simple

61.

An organism made of many cells.

a)

multicellular

b)

complex

c)

unicellular

d)

simple

62.

Made of several of the same type of cell.

a)

organ

b)

cell

c)

tissue

d)

organ system

63.

Part of an organism that is made of tissues, self-contained, and performs a specific purpose.

a)

cell

b)

organ

c)

tissue

d)

organ system

64.

A group of organs that work together to perform a certain function in an organism's body.

a)

cell

b)

tissue

c)

organ

d)

organ system

65.

The smallest structural and functional unit of an organism.

a)

cell

b)

tissue

c)

organ

d)

organ system

66.

Which places the following items in the correct order from smallest to largest?

a)

cell, organ, tissue, organ system, organism

b)

organism, organ system, organ, tissue, cell

c)

organism, cell, tissue, organ system, organ

d)

cell, tissue, organ, organ system, organism

67.

All biological organisms are composed of cells; cells are the unit of life and all life come from pre-existing life.

a)

cell theory

b)

organism theory

c)

life theory

d)

theory of evolution

68.

A different form of a gene.

a)

allele

b)

gene

c)

dominant

d)

recessive

69.

A type of reproduction in which one parent organism produces offspring without meiosis and fertilization.

a)

mitosis

b)

meiosis

c)

asexual reproduction

d)

sexual reproduction

70.

Cell division that forms two genetically identical cells.

a)

budding

b)

binary fission

c)

cloning

d)

regeneration

71.

The process during which a new organism grown by mitosis and cell division on the body of its parent.

a)

budding

b)

regeneration

c)

binary fission

d)

cloning

72.

Molecule of DNA the contains genes.

a)

allele

b)

gene

c)

chromosome

d)

nucleus

73.

An organism's genetic material.

a)

chromosome

b)

DNA

c)

nucleus

d)

cell

74.

A genetic factor that blocks another genetic factor.

a)

weak

b)

strong

c)

dominant

d)

recessive

75.

A genetic factor that is blocked by the presence of a dominant factor.

a)

weak

b)

strong

c)

dominant

d)

recessive

76.

A section of DNA on a chromosome that has genetic information for one trait.

a)

allele

b)

gene

c)

DNA

d)

nucleus

77.

The study of how traits are passed from parents to offspring.

a)

genetics

b)

heredity

c)

biology

d)

anthropology

78.

The alleles of all the genes on an organism's chromosomes; controls an organism's phenotype.

a)

phenotype

b)

genetics

c)

allele

d)

genotype

79.

The passing of traits from parents to offspring.

a)

genetics

b)

heredity

c)

biology

d)

anthropology

80.

A genotype in which the two alleles of a gene are different.

a)

haploid

b)

homologous

c)

homozygous

d)

heterozygous

81.

A genotype in which the two alleles of a gene are the same.

a)

homozygous

b)

homologous

c)

haploid

d)

heterozygous

82.

A process in which one diploid cell divides to make four haploid cells.

a)

meiosis

b)

mitosis

c)

mimicry

d)

mutation

83.

The process in which one diploid cell divides to create two identical diploid cells.

a)

meiosis

b)

mitosis

c)

mimicry

d)

mutation

84.

How a trait appears or is expressed.

a)

phenotype

b)

genotype

c)

dominant

d)

recessive

85.

A model that is used to show the probability of all possible genotypes and phenotypes of offspring.

a)

Scale Model

b)

Computer Model

c)

Punnett Square

d)

3D Model

86.

A type of reproduction in which the genetic material from two different cells - a sperm and an egg - combine, producing an offspring.

a)

asexual reproduction

b)

sexual reproduction

c)

mitosis

d)

meiosis

87.

A series of chemical reactions that covert the energy in food molecules into a usable form of energy called ATP.

a)

cellular respiration

b)

photosynthesis

c)

endothermic

d)

exothermic

88.

A series of events that are regularly repeated in the same order

a)

steps

b)

cycle

c)

process

d)

rotation

89.

The process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water.

a)

cellular respiration

b)

photosynthesis

c)

endothermic

d)

exothermic

90.

Starting components of a chemical reaction.

a)

elements

b)

molecules

c)

reactants

d)

products

91.

Substance formed as a result of a chemical reaction.

a)

element

b)

molecule

c)

reactant

d)

product

92.

A nonliving part of the ecosystem.

a)

biotic

b)

abioitic

c)

competition

d)

survival

93.

BIOLOGY

A change or the process of change by which an organism or species becomes better suited to its environment.

a)

adaptation

b)

survival

c)

predation

d)

commensalism

94.

An organism that can produce its own food using light, water, carbon dioxide, or other chemicals.

a)

autotroph

b)

heterotroph

c)

predator

d)

prey

95.

The variety of life in the world or in a particular habitat or ecosystem.

a)

hydrodiversity

b)

autodiversity

c)

geodiversity

d)

biodiversity

96.

Any living thing that has an effect on an ecosystem

a)

biotic

b)

abiotic

c)

predator

d)

prey

97.

A symbiotic relationship that benefits one species but does not harm or benefit the other.

a)

Symbiosis

b)

Commensalism

c)

Predation

d)

Mutualism

98.

The demand for resources, such as food, water, and shelter, in short supply in a community.

a)

competition

b)

predation

c)

symbiosis

d)

consumption

99.

All the living things and nonliving things in a given area.

a)

niche

b)

habitat

c)

ecosystem

d)

planet

100.

The process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth.

a)

adaptation

b)

evolution

c)

growth

d)

change

101.

An organism that eats other plants or animals for energy and nutrients

a)

heterotroph

b)

autotroph

c)

prey

d)

producer

102.

A symbiotic relationship in which both organisms benefit.

a)

commensalism

b)

mutualsim

c)

symbiosis

d)

predation

103.

A symbiotic relationship in which one organism benefits and the other is harmed.

a)

commensalism

b)

mutualism

c)

parasitism

d)

symbiosis

104.

A close, long-term relationship between two species that usually involves an exchange of food or energy.

a)

Predation

b)

Commensalism

c)

Mutualism

d)

Symbiosis

105.

The way a species interacts with abiotic and biotic factors to obtain food, find shelter, and fulfill other needs.

a)

niche

b)

environment

c)

role

d)

ecosystem

106.

An energy resource that is available in limited amounts or that is used faster than it can be replaced in nature.

a)

unlimited resource

b)

renewable resource

c)

limited resource

d)

nonrenewable resource

107.

An energy resource that is replaced as fast as, or faster than, it is used.

a)

unlimited resource

b)

renewable resource

c)

limited resource

d)

nonrenewable resource

108.
Organisms who receive their energy by consuming other organisms.
a)
Chloroplast
b)
Heterotroph
c)
Autotroph
d)
Phototropism
109.
The part of a cell that contains the chromosomes (wound up DNA) in eukaryotic cells.
a)
Chloroplasts
b)
Cell Wall
c)
Nucleus
d)
Homeostasis
110.
The genetic code for all of your traits.
a)
Nucleus
b)
DNA
c)
Chloroplast
d)
Recessive gene
111.
The organelle inside a plant cell that converts sunlight into energy.
a)
Chloroplast
b)
Photosynthesis
c)
Parasite
d)
Cell Wall
112.
The part of a plant cell that is rigid & permeable.
a)
Chloroplast
b)
Turgor Pressure
c)
Cell Wall
d)
Phototropism 
113.
The term used to define a cell that has a nucleus containing DNA.
a)
Prokaryote
b)
Eukaryote
c)
Autotroph
d)
Homeostasis
114.
A cell without a nucleus.
a)
Eukaryotic
b)
Prokaryotic
c)
Heterotroph
115.
Organisms who receive energy from dead or decaying matter.
a)
Prokaryotic
b)
Omnivore
c)
Heterotrophic
d)
Decomposers
116.
Rebuilding an ecosystem after a catastrophic event has occurred and soil is present.
a)
Primary Succession
b)
Secondary Succession
c)
Natural Selection
d)
Adaptations
117.
The trait that is always expressed.  It will hide or mask the other trait.
a)
Recessive
b)
Dominant
c)
Natural Selection
d)
Homeostasis
118.
Behavior patterns, or internal and external structures which allow an organism to survive and reproduce in their environment successfully.
a)
Adaptations
b)
Homeostasis
c)
Recessive traits
d)
Natural Selection
119.
The trait that is hidden or masked by the other trait. 
a)
Dominant
b)
Eukaryotic
c)
Recessive 
d)
Homeostasis
120.
Organisms who make their own energy by taking in light or chemicals.
a)
Heterotroph
b)
Phototropism
c)
Autotroph
d)
Heterotroph
121.
Successful traits are passed onto offspring through natural circumstances. 
a)
Natural Selection
b)
Primary Succession
c)
Secondary Succession
d)
Dominant
122.
The response of a plant due to the stimuli of light energy.
a)
Parasitic
b)
Chloroplast
c)
Photosynthesis
d)
Phototropism 
123.
This type of organism feeds on a host organism, causing harm to the host. 
a)
Decomposer
b)
Parasite
c)
Heterotroph
d)
Carnivore
124.
The organism's ability to maintain equilibrium in their body.
a)
Homeostasis
b)
Heterotroph
c)
Prokaryotic
d)
Autotrophic
125.
The process where plants use the light from the sun to convert carbon dioxide and water into glucose. 
a)
Phototropism
b)
Chloroplast
c)
Photosynthesis
d)
Prokaryotic
126.
An animal making a copy of itself is ___________ reproduction.
a)
sexual
b)
asexual
c)
incomplete
d)
complete
127.
Two copies of a _________ allele are needed to produce a trait.
a)
strong
b)
dominant
c)
green
d)
recessive
128.
A long strand of DNA is called a ____________.
a)
gene
b)
nucleus
c)
piece
d)
string
129.
What kind of diagram shows the probability of traits in an offspring?
a)
Venn diagram
b)
Punnett square
c)
Bar chart
d)
Line graph
130.
Two parents combine their DNA to produce an offspring in _________ reproduction.
a)
asexual
b)
complete
c)
sexual
d)
incomplete
131.
Nest building is an example of a _____________.
a)
Punnett square
b)
friendship
c)
dominant allele
d)
reproductive strategy
132.
The goal of reproductive strategies is to pass on ______.
a)
genes
b)
knowledge
c)
cloning
d)
nothing
133.
Some organisms can produce both sexually and asexually.
a)
TRUE
b)
FALSE
134.
What is a version of a gene called?
a)
Gene
b)
Allele
c)
Chromosome
d)
DNA
135.
Genes have the instructions for making _____________.
a)
chromosomes
b)
carbohydrates
c)
proteins
d)
cells
136.
What do scientists call the parts of a cell?
a)
Pieces
b)
Sections
c)
Organelles
d)
None of the above
137.
Which of these is a unicellular organism?
a)
Fish
b)
Worm
c)
Amoeba
d)
Ant
138.
Which part of an onion root cell gives it a brick-like structure?
a)
Cell membrane
b)
Cell wall
c)
Vacuole
d)
Chloroplast
139.
The DNA of a cell is found in the __________.
a)
mitochondria
b)
lysosome
c)
nucleus
d)
vacuole
140.
What do you call the gooey liquid in a cell?
a)
Lysosome
b)
Mitochondria
c)
Chloroplast
d)
Cytoplasm
141.
Which of these organelles do animal cells not have?
a)
Nucleus
b)
Chloroplasts
c)
Cell membrane
d)
Lysosome
142.
This organelle is often referred to as the power house of the cell.
a)
Mitochondria
b)
Lysosome
c)
Chloroplast
d)
Vacuole
143.
This organelle is where plants do photosynthesis.
a)
Mitochondria
b)
Lysosome
c)
Chloroplast
d)
Vacuole
144.
This organelle is the trash and recycling center of a cell.
a)
Mitochondria
b)
Lysosome
c)
Chloroplast
d)
Vacuole
145.
Which organelle is on the outside of an animal cell?
a)
Cell wall
b)
Cell membrane
c)
Cellular lining
d)
Cytoplasm
146.
________ is the process that plants use to make food.
a)
Respiration
b)
Photosynthesis
c)
Chemical reaction
d)
Carbon dioxide
147.
Plants and animals both use the process of _____ to release stored energy.
a)
photosynthesis
b)
chemical reaction
c)
growth
d)
cellular respiration
148.
Molecular biologists study ______.
a)
cell processes
b)
atmosphere
c)
weather
d)
animal behavior
149.
One product of photosynthesis is ____ that animals breathe.
a)
carbon dioxide
b)
oxygen
c)
cyanobacteria
d)
phytoplankton
150.
Living things that are too small to be seen are called_____.
a)
organisms
b)
atoms
c)
microorganisms
d)
molecules
151.
Matter cannot be created or ________.
a)
destroyed
b)
moved
c)
seen
d)
eaten
152.
Cellular respiration happens in the cell's _____.
a)
atmosphere
b)
mitochondria
c)
carbon dioxide
d)
chloroplast
153.
Carbon dioxide and oxygen are both ___ found in the air.
a)
liquids
b)
gases
c)
microorganisms
d)
processes
154.

What kind of organism was doing photosynthesis before plants?

a)

Cyanobacteria

b)

Algae

c)

Seaweed

d)

Insects

155.
A _____ is a process in which reactants change into a new product.
a)
chemical reaction
b)
cell process
c)
molecule
d)
mitochondria
156.
To move, the muscular system needs to work with the _______ system that sends signals from the brain.
a)
skeletal
b)
circulatory
c)
nervous
d)
excretory
157.
The heart pumps blood that carries oxygen all over the body. The oxygen comes from the _________ system.
a)
nervous
b)
respiratory
c)
circulatory
d)
muscular
158.
Tissue is made from ________.
a)
organisms
b)
cells
c)
organs
d)
bones
159.
What does multicellular mean?
a)
One cell
b)
Nonliving
c)
Many cells
d)
Living
160.
It is possible to trick the brain by altering _________ to make you think you're eating something sweet.
a)
your eyes
b)
your taste buds
c)
your teeth
d)
neurons
161.
Organs work together to make _________.
a)
body tissue
b)
cells
c)
other organs
d)
body systems
162.
Stems and roots would be a part of a ________ system.
a)
plant
b)
insect
c)
human
d)
bacteria
163.
To stay alive, systems need to work ________.
a)
alone
b)
independently
c)
together
d)
randomly
164.
To digest the food we eat, the digestive system has to work with the ________ system.
a)
muscular
b)
nervous
c)
circulatory
d)
All of the above
165.
The excretory system gets rid of _______ in your body.
a)
fat
b)
waste
c)
energy
d)
air
166.
An example of a decomposer is a _______.
a)
butterfly
b)
bear
c)
plant
d)
worm
167.
Plants are considered _________ because they make their own food.
a)
consumers
b)
producers
c)
makers
d)
decomposers
168.
These organisms break down dead things.
a)
Consumers
b)
Producers
c)
Decomposers
d)
Rotters
169.
This is the chemical process by which plants make their own food.
a)
Cellular respiration
b)
Combustion
c)
Electrolysis
d)
Photosynthesis
170.
The overlapping of food chains results in a ________.
a)
woven chain
b)
braided chain
c)
food web
d)
food nest
171.
When we eat, our bodies go through this process to make energy from food.
a)
Photosynthesis
b)
Cellular respiration
c)
Transpiration
d)
Absorption
172.
This is the ultimate source of energy on Earth.
a)
Heat
b)
Fire
c)
Electricity
d)
The sun
173.
A grasshopper that eats the seeds of a plant is considered to be a _____________.
a)
producer
b)
decomposer
c)
consumer
d)
predator
174.
A consumer at the top of a food chain is sometimes called ________.
a)
a producer
b)
an apex consumer
c)
a top consumer
d)
prey
175.
The final products of photosynthesis are oxygen and _________.
a)
sunlight
b)
sugar
c)
carbon dioxide
d)
water
176.

How do you classify the following genotype : AA

a)

Homozygous Dominant

b)

Homozygous Recessive

c)

Heterozygous

177.

How do you classify the following genotype : Ee

a)

Homozygous Dominant

b)

Homozygous Recessive

c)

Heterozygous

178.

How do you classify the following genotype : Ii

a)

Homozygous Dominant

b)

Homozygous Recessive

c)

Heterozygous

179.

How do you classify the following genotype : Mm

a)

Homozygous Dominant

b)

Homozygous Recessive

c)

Heterozygous

180.

How do you classify the following genotype : ff

a)

Homozygous Dominant

b)

Homozygous Recessive

c)

Heterozygous

181.

How do you classify the following genotype : Bb

a)

Homozygous Dominant

b)

Homozygous Recessive

c)

Heterozygous

182.

How do you classify the following genotype : HH

a)

Homozygous Dominant

b)

Homozygous Recessive

c)

Heterozygous

183.

How do you classify the following genotype : jj

a)

Homozygous Dominant

b)

Homozygous Recessive

c)

Heterozygous

184.

If Purple Flowers (P) are dominant over white flowers (p), what would the phenotype be for a Pp genotype?

a)

Purple flowers

b)

White flowers

c)

Not enough information

185.

If Purple Flowers (P) are dominant over white flowers (p), what would the phenotype be for a pp genotype?

a)

Purple flowers

b)

White flowers

c)

Not enough information

186.

If Purple Flowers (P) are dominant over white flowers (p), what would the phenotype be for a PP genotype?

a)

Purple flowers

b)

White flowers

c)

Not enough information

187.

If Brown eyes (B) are dominant over blue eyes (b), what would the phenotype be for a bb genotype?

a)

Brown Eyes

b)

Blue Eyes

c)

Green Eyes

188.

If Brown eyes (B) are dominant over blue eyes (b), what would the phenotype be for a Bb genotype?

a)

Brown Eyes

b)

Blue Eyes

c)

Green Eyes

189.

If Brown eyes (B) are dominant over blue eyes (b), what would the phenotype be for a BB genotype?

a)

Brown Eyes

b)

Blue Eyes

c)

Green Eyes

190.

If straight hair (S) is dominant to curly hair (s) - what are the possible Genotype(s) for curly hair?

a)

ss only

b)

SS only

c)

SS or Ss

d)

Curly Hair

e)

Straight Hair

191.

If straight hair (S) is dominant to curly hair (s) - what are the possible Genotype(s) for straight hair?

a)

ss only

b)

SS only

c)

SS or Ss

d)

Straight Hair

e)

Curly Hair

192.

If pointed heads (P) are dominant to round heads (p) - what are the possible Genotype(s) for pointed heads?

a)

pp only

b)

PP only

c)

PP or Pp

d)

pointed head

e)

round head

193.

If pointed heads (P) are dominant to round heads (p) - what are the possible Genotype(s) for round heads?

a)

pp only

b)

PP only

c)

PP or Pp

d)

pointed head

e)

round head

194.

The study of ____________ is called genetics

a)

heredity

b)

dominance

c)

pea plants

d)

mutations

195.

Gregor Mendel studied heredity using _______ plants

a)

rose

b)

pea

c)

berry

d)

corn

196.

____________ used plants to study the way traits are passed from parent to offspring

a)

Mendel

b)

Punnett

c)

Sutton

197.

If you cross a white flower (pp) with a purple flower (PP), the possible genotypes of the offspring are

a)

PP and pp

b)

All Pp

c)

All PP

d)

All pp

198.

If you crossed a PP (purple) with a pp (white), what would the phenotypes be?

a)

all white

b)

all tall

c)

all purple

d)

1/2 white, 1/2 purple

199.

The organism's appearance is known as its

a)

heredity

b)

pedigree

c)

phenotype

d)

genotype

200.

If you cross two rabbits that have the genotype Bb, how many possible genotypes can be found in the offspring?

a)

one

b)

two

c)

three

d)

four

201.

Genetics is the study of ______________

a)

DNA

b)

heredity

c)

genes

202.

Who is the Father of Genetics?

a)

Darwin

b)

Punnett

c)

Mendel

203.

_____________ describes a trait that covers over, or masks another form of that trait.

a)

recessive

b)

gene

c)

allele

d)

dominant

204.

Same traits produced in offspring from generation to generation is called?

a)

pure breeding

b)

cross breeding

c)

hybrid

d)

children

205.

_________________ describes a trait that is covered over, or masked by another form of that trait.

a)

dominant

b)

punnett

c)

recessive

d)

gene

206.

Breeding organisms with different traits is called?

a)

hybrid

b)

cross breeding

c)

pure breeding

d)

genetics

207.

The offspring that result from cross breeding are called?

a)

phenotype

b)

genotype

c)

hybrid

d)

gene

208.

The letters representing the phenotype is called

a)

phenotype

b)

genotype

209.

Different forms of a gene are called

a)

alleles

b)

traits

210.

A ______________ square is a model that helps make genetic predictions.

a)

Punnett

b)

Mendel

211.

Two of the same alleles of the gene for a certain trait

a)

heterozygous

b)

homozygous

212.

Two different alleles of the gen for a certain trait

a)

homozygous

b)

heterozygous

213.

In a pedigree, what do circles represent?

a)

males

b)

females

c)

carrier

d)

non carrier

214.

In a pedigree, when a circle of square is halfway shaded, is it

a)

male

b)

female

c)

carrier

d)

non carrier

215.

Which term best describes two predators living in the same habitat who feed on the same prey?

a)

coexistence

b)

competition

c)

mutualism

d)

predatory

216.

A pride of lions stalks, tackles, and kills an antelope. Which is best being demonstrated?

a)

predation

b)

mutualism

c)

parasitism

d)

commensalism

217.

Plants interact with living and nonliving components in their environment. Which is an interaction with a nonliving element?

a)

Small insects eating the stems of the plants

b)

Humans breathing oxygen released by plants

c)

Bees gathering pollen from flowers of plants

d)

Sandy soil holding the roots of the plants

218.
Which of these is an example of one living thing depending on another living thing?
a)
Cat walking on the sand
b)
Bird building a nest in a tree
c)
Dog warming in the sunlight
d)
Squirrel drinking water
219.
All of the following are examples of living things interacting with each other EXCEPT —
a)
birds preying on insects living in the grass
b)
squirrels spreading the seeds of trees by burying them
c)
frogs sleeping in the mud at the bottom of the pond
d)
fish eating plants and other smaller fish
220.
Living and nonliving things interacting in an environment is called:
a)
A. Organism
b)
B. Producer
c)
C. Consumer
d)
D. Ecosystem
221.

Plants are interacting directly with another living element of their environment when they are -

a)

A. Soaking up water

b)

B. Absorbing sunlight

c)

C. Attracting insects

d)

D. Taking in carbon dioxide

222.

A tapeworm inside a dog is

a)

competition

b)

predation

c)

commensalism

d)

parasitism

223.

A symbiotic relationship that involves species having to fight for something they both need or want

a)

competition

b)

predation

c)

commensalism

d)

parasitism

224.

relationship in which two species live closely together

a)

resource

b)

mutualism

c)

succession

d)

symbiosis

225.

A living relationship between two species in which one organism is harmed is called...

a)

mutualism

b)

commensalism

c)

parasitism

d)

niche

226.

symbiotic relationship in which one organisms benefits and the other organism is not affected

a)

invasive (non-native) species

b)

mutualism

c)

parasitism

d)

commensalism

227.

symbiotic relationship in which both organisms benefit

a)

competition

b)

Mutualism

c)

nitrogen fixation

d)

energy pyramid

228.

Barnacles create home sites by attaching themselves to whales. This neither harms nor benefits the whales. What kind of relationship is this?

a)

Mutualism

b)

Parasitism

c)

Commensalism

d)

Predatory

229.

What type of symbiosis is this?

*Hermit crabs find shells left by snails that have died and move in.

* Snails die and leave behind their shells.

a)

commensalism

b)

mutualism

c)

parasitism

d)

predation

230.

The crocodile and bird have a _______________ relationship. The crocodile benefits by having its teeth cleaned. The bird benefits by gaining food and protection. Both animals benefit from this relationship.

a)

parasitism

b)

predator and prey

c)

mutualism

d)

commensalism

231.

A clownfish uses a sea anenome as a safe place to live. While living there, the clownfish lures in food for the anenome. This is an example of what type of relationship?

a)

Predator-Prey

b)

Commensalism

c)

Mutualism

d)

Parasitism

232.

Which of the following activities has a positive effect on the environment?

a)

recycling

b)

deforestation

c)

pollution

d)

garbage

233.

_____________ are LARGE areas that have similar climate, plant life, and animals.

a)

ecosystem

b)

habitat

c)

population

d)

biomes

234.

What the non-living factor that is the most important to an ecosystem to work?

a)

Water

b)

The sun's energy

c)

Plants

d)

animals

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