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7th Grade Life Science End of Year Review

Total questions: 90

Worksheet time: 3hrs 38mins

Name
Class
Date
1.
Which is a non-living thing?
a)
rock
b)
bush
c)
grass
d)
goldfish
2.
Which is a living thing?
a)
pen
b)
chair
c)
butterfly
d)
fire
3.

Biotic factors are

a)

Living

b)

nonliving

4.
Which one of the following is a characteristic of life?
a)
Growth
b)
Breathing
c)
Expelling toxins
d)
Photosynthesis
5.
A worm turns away from light is an example of a worm
a)
reproducing
b)
doing cellular respiration
c)
having cells
d)
responding to its environment
6.
Before a soccer game Charlie always eats a big dinner. Which characteristic of life does this face best describe? 
a)
living things use energy
b)
living things reproduce
c)
living things grow and develop
d)
living things are based on a universal genetic code
7.

Temperature

a)

Biotic (living)

b)

Abiotic (non-Living)

8.

Sand

a)

Abiotic (non-living)

b)

Biotic (living)

9.

water

a)

biotic (livng)

b)

Abiotic (non-living)

10.

Chameleon

a)

Biotic (living)

b)

Abiotic (non-living)

11.
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
12.
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
13.
Tissue is made from ________.
a)
organisms
b)
cells
c)
organs
d)
bones
14.
What does multicellular mean?
a)
One cell
b)
Nonliving
c)
Many cells
d)
Living
15.
Organs work together to make _________.
a)
body tissue
b)
cells
c)
other organs
d)
body systems
16.
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
17.
The excretory system gets rid of _______ in your body.
a)
fat
b)
waste
c)
energy
d)
air
18.

Which is a characteristic of most single-celled organisms?

a)

They have a complex nervous system.

b)

They contain several different types of cells.

c)

They perform all life processes.

d)

They have a circulatory and a respiratory system.

19.

Which statement best describes how a multicellular organism survives?

a)

Every cell carries out the same functions for the survival of the organism.

b)

The cells all have the same structures that allow the organism to survive.

c)

All life processes are performed by each cell for the survival of the organism.

d)

The cells have different functions, and together they are essential for the survival of the organism.

20.

Which characteristic do single-celled organisms and multicellular organisms have in common?

a)

Both have cells with specialized functions for each life process.

b)

Both perform all life processes within one cell.

c)

Both have a way to get rid of waste materials.

d)

Both are able to make food from sunlight.

21.

Which statement about Specialized Cells is true?

a)

Different types of cells look different, but they all do the same job.

b)

Different types of cells cooperate to keep the organism alive.

c)

Different types of cells do not need each other in order to survive.

d)

Different types of cells are all similar shapes and sizes.

22.
Which of the following is NOT one of the basic points of Cell Theory?
a)
All living things are made of cells.
b)
The cell is the smallest living thing that can perform all the functions of life.
c)
Cells are too small to see without a microscope.  
d)
All cells must come from pre-existing cells.
23.
Animal, fungi, plant, and protista cells are all examples of which type of cell?
a)
Eukaryotic
b)
Prokaryotic
c)
Both prokaryotic and eukaryotic
24.

These cells have DNA that is found inside the nucleus...

a)

Eukaryotic

b)

Prokaryotic

c)

Neither

d)

Both prokaryotic and eukaryotic

25.
Which of the following is found inside a prokaryote?
a)
cytoplasm
b)
DNA
c)
ribosomes
d)
all of these
26.
What type of cell is pictured?
a)
Prokaryotic
b)
Eukaryotic
c)
Plant
d)
Animal
27.

What type of cell is shown in the picture?

a)

eukaryotic

b)

prokaryotic

28.

Only found in plant cells, these organelles are filled with a green pigment called chlorophyll. They capture sunlight and turn it into energy

a)

Cell wall

b)

Chloroplasts

c)

Vacuole

d)

Lysosomes

29.

Only found in plant cells, this organelle has a rigid layer that surrounds the cell membrane. It helps protect and support the cell.

a)

Cell Wall

b)

Chloroplasts

c)

Cytoplasm

d)

Cell membrane

30.

The organelles that is the cell’s control center and contains DNA.

a)

Vacuole

b)

Mitochondria

c)

Cell membrane

d)

Nucleus

31.

Which organelles are found in plant cells but NOT animal cells?

a)

nucleus and cell membrane

b)

chloroplasts and nucleus

c)

cell wall and cell membrane

d)

cell wall and chloroplasts

32.

Both prokaryotic and eukaryotic cells have all of the following EXCEPT:

a)

Cytoplasm

b)

Ribosomes

c)

DNA

d)

Nucleus

33.
Is this an example of Osmosis or Diffusion?
a)
Osmosis
b)
Diffusion
c)
Something else
d)
Neither
34.
Is this an example of Osmosis or Diffusion?
a)
Osmosis
b)
Diffusion
c)
Something else
d)
Neither
35.

Osmosis, Diffusion, and Faciliated Diffusion are types of...

a)

Active transport

b)

Passive transport

c)

Protein Pumps

d)

Exocytosis

36.

When water diffuses into or out of a cell, it is called...

a)

osmosis

b)

exocytosis

c)

active transport

d)

endocytosis

37.

Endocytosis and Exocytosis are types of _______________ transport

a)

Active

b)

Passive

c)

diffusion

d)

isotonic

38.

Which organelle is responsible for maintaining homeostasis in the cell?

a)

DNA

b)

vacuole

c)

mitochondria

d)

Plasma Membrane

39.

Which processes require energy?

a)

osmosis and facilitated diffusion

b)

exocytosis and endocytosis

c)

exocytosis and facilitated diffusion

d)

facilitated diffusion and passive transport

40.

In active transport, how do particles move?

a)

from areas of high concentration to areas of low concentration

b)

from areas of low concentration to areas of high concentration

c)

they do not move

d)

using no energy

41.

Which process is shown?

a)

Endocytosis

b)

Exocytosis

c)

diffusion

d)

protein pumps

42.

Which process is shown?

a)

endocytosis

b)

exocytosis

c)

facilitated diffusion

d)

cytokenesis

43.

What is the main goal for ALL cell processes?

a)

to produce energy

b)

to help the cell acheive and maintain homeostasis

c)

to bring needed nitrients to the cell

d)

get rid of exra nitrients

44.

What is the correct order of the levels of cell organization from simplest (smallest) to most complex (biggest)?

a)

Cell, Organ, Tissue, Organ System, Organism

b)

Organism, Tissue, Cell, Organ system, Organ

c)

Cell, Tissue, Organ, Organ System, Organism

d)

Tissue, Cell, Organ, Organ System, Organism

45.

What is the function of the cardiovascular / circulatory system?

a)

To provide nutrients to the whole body

b)

To maintain homeostasis for the body

c)

To fight off infection or disease

d)

To transport nutrients, oxygen, and blood throughout the body

46.

What is the function of the nervous system?

a)

In order to achieve homeostasis, it controls all parts of the body; sends signals between the brain, spinal cord, and nerve endings,

b)

What happens when you get nervous to do something

c)

To fight off diseases

d)

To carry oxygen, nutrients, and blood throughout the body

47.

What is the function of the skeletal system?

a)

Movement of the body

b)

transports oxygen, blood, nutrients throughout the body

c)

removes waste

d)

supports the body by holding it up; muscles are attached to help with movement

48.

What systems are interacting: Oxygen moves from the lungs to the blood and carbon dioxide moves from the blood to the lungs.

a)

muscular, circulatory

b)

respiratory, muscular

c)

respiratory, circulatory

d)

nervous, circulatory

49.
Which two body systems work together to break down food into energy and rid the body of the waste produced during this process?
a)
Skeletal and endocrine
b)
Digestive and excretory
c)
Nervous and immune
d)
Muscular and skeletal
50.

The esophagus and intestines are made up of smooth muscles that move food through these organs using muscular contractions. Which two systems are working together here?

a)

Muscular and Digestive

b)

Reproductive and Endocrine

c)

Muscular and Excretory

d)

Digestive and Immune

51.
Two of the same genes for a trait (sometimes called purebred). BB or bb
a)
homozygous
b)
hetrozygous
c)
protein
d)
chromosome
52.

Which of the following is homozygous dominant?

a)

RR

b)

Rr

c)

rr

53.

Which of the following is homozygous recessive?

a)

QQ

b)

Qq

c)

qq

54.
An allele whose trait only shows up when no dominant allele is present.
a)
hidden allele
b)
dominant allele
c)
recessive allele
d)
present allele
55.

The genotype Dd is...

a)

homozygous

b)

heterozygous

56.

If brown (B) is dominant and red (b) is recessive for hair color. What is the phenotype of (Bb)?

a)

brown hair

b)

red hair

57.
T - tall and t = short
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
58.
What is the phenotype of the offspring? (A-Brown hair; a-blond hair) 
a)
50 % Brown Hair and 50% Blond Hair 
b)
25 % Brown Hair and 75% Blond Hair 
c)
75 % Brown Hair and 25% Blond Hair 
d)
0% Brown Hair and 100% Blond Hair 
59.
Why is DNA important?
a)
it is very small and very complicated
b)
it's in everything
c)
it serves as the blueprint for traits of all living things
d)
because we eat it every day for energy
60.

Which shows the correct complementary base pairing for DNA?

a)

Cytosine(C)-Adenine(A) &Thymine(T)-Guanine(G)

b)

Adenine(A)-Guanine(G) & Cytosine(C)-Thymine(T)

c)

Cytosine(C)-Guanine(G) & Uracil(U)-Adenine(A)

d)

Thymine(T)-Adenine(A) & Guanine(G)-Cytosine(C)

61.

The building block of nucleic acids are nucleotides. Nucleotides are composed of a sugar, a phosphate group, and a(n) _________________ .

a)

oxygen

b)

hydrogen

c)

nitrogenous base

d)

carbon

62.

I am arranged as a double helix or "twisted ladder".

a)

DNA

b)

RNA

c)

ribosome

d)

protein

63.

Which of the following is not a benefit of asexual reproduction?

a)

Offspring will be successful in an unchanged environment.

b)

Good at adapting to changing environments.

c)

Only requires one parent to produce offspring.

d)

Can reproduce rapidly.

64.

Asexual reproduction is associated with what type of cell division?

a)

Mitosis

b)

Meiosis

65.

An organism that has been reproduced by asexual means receives ______________ of its chromosomes from its one parent.

a)

3

b)

25%

c)

50%

d)

100%

66.

In asexual reproduction, all of the offspring are:

a)

Physically Identical

b)

Genetically Identical

c)

Physically and Genetically Identical

d)

Not Identical

67.

What is the big advantage of sexual reproduction?

a)

Can quickly grow the population

b)

Offspring are guaranteed to be successful in an unchanged environment.

c)

Only one parent is required to reproduce.

d)

Can adapt to changing environments

68.

What is the type of reproduction that only requires one parent?

a)

Asexual

b)

Sexual

69.

Which type of reproduction results in diversity because the offspring are a combination of the parents and genetically different?

a)

Asexual

b)

Sexual

70.

Which type of reproduction results in offspring with unique traits.

a)

Sexual reproduction

b)

Asexual reproduction

71.

What type of reproduction occurs when pollen from one flower joins the eggs of another flower?

a)

sexual reproduction

b)

asexual reproduction

72.

Along the runners of a plant, tiny new plants take root. Each new plant is identical to the parent. What type of reproduction is this?

a)

sexual reproduction

b)

asexual reproduction

73.
Which domain is capable of living in extreme environments like hot springs, geysers, or very salty waters?
a)
Bacteria
b)
Archaea
c)
Eukarya
74.
Which domain includes all animals and plants?
a)
Archaea
b)
Eukarya
c)
Bacteria
75.

Which kingdoms include organisms that can make their own food (autotrophic)?

a)
Plantae and Animalia
b)
Fungi and Plantae
c)
Protista and Plantae
76.
In the 8 levels of classification which level is the broadest category? 
a)
Kingdom
b)
Family
c)
Species
d)
Domain
77.
What are the 8 levels of classification of living things from most general to most specific?
a)
domain, kingdom, phylum, class, order, family, genus, species
b)
domain, kingdom, class, phylum, order, family, genius, species
c)
domain, kingdom, family, class, order, family, genus, species
d)
domain, king, phillip, class, order, family, genus, species
78.

This organism is made of a single prokaryotic cell and lives in hot springs. It can be an autotroph or a heterotroph. Which kingdom does it belong to?

a)

Archaebacteria

b)

Eubacteria

c)

Protista

d)

Fungi

e)

Plantae

79.

Mushrooms are made of many eukaryotic cells and are heterotrophs. They like to live in soil and places rich in organic material. Which kingdom do they belong to?

a)

Protista

b)

Fungi

c)

Plantae

d)

Animalia

80.
A dichotomous key for trees is provided. Hikers found a tree that has large brown cones and single sharp needles. What species of tree have the hikers found?
a)
Juniper
b)
Pine
c)
Spruce
d)
Fir
81.

Why are producers extremely important in a food web?

a)

Producers give energy to apex predators.

b)

Producers provide a food source for organisms that cannot make their own food.

c)

Producers break down dead plants and animals to recycle nutrients back into an ecosystem.

d)

Producers get energy by consuming other organisms.

82.

Secondary consumers in a food web are____________________

a)

organisms that use sunlight to make their own food.

b)

organisms that only eat producers.

c)

organisms that eat primary consumers and some also eat plants.

d)

organisms that break down the nutrients in dead plants and animals.

83.

Ecology is _____________________.

a)

the study of how organisms of the same species live in a specific geographical location.

b)

the study of the interactions of living organisms with one another and with their environment.

c)

the study of the non living parts of an ecosystem.

d)

the study of the evolution of organisms using fossils.

84.

Which animals on the food web are secondary consumers?

a)

bird, owl, fox

b)

grasshopper, mice, fox

c)

carrot, rabbit, owl

d)

grains, mice, owl

85.

Based on the food web, where do the carrots, grasses and grains get their energy from?

a)

rabbits, mice, and grasshoppers

b)

the sun

c)

rabbits, mice, birds, and grasshoppers

d)

owls and foxes

86.

What type of organisms break down the matter of dead plants and animals?

a)

scavengers

b)

producers

c)

consumers

d)

decomposers

87.

This organism is most likely:

a)

A primary consumer

b)

A secondary consumer

c)

A decomposer

d)

A producer

88.

Virtually all plants are autotrophic. But there are no autotrophic animals or fungi. What can you infer about autotrophic organisms?

a)

They can move around on their own.

b)

They are at the top of the food chain.

c)

They can make their own energy.

d)

They reproduce slowly.

89.

Which organisms do primary consumers mainly eat?

a)

Producers

b)

Secondary consumers

c)

Predators

d)

Decomposers

90.

Bacteria is considered a

a)

PRODUCER

b)

DECOMPOSER

c)

CONSUMER

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