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WorksheetsLife Science CFE
Total questions: 31
Worksheet time: 31mins
What is the function of the excretory system?
Circulate blood through the body
Protect the body from pathogens
Bring oxygen into the body
Remove waste from the body
How does the digestive and circulatory system work together?
The circulatory system helps to delivery the absorbed nutrients from the small intestines to other cells in the body.
The circulatory system takes the waste from the absorbed food and removes it from the body.
The digestive system circulates blood through the body.
What is Homeostasis in the human body?
The bodies ability to maintain a balance between the organs and functions of the body on the inside of the body regardless of the conditions on the outside of the body.
The bodies ability to stay still
The bodies ability to take in as much cupcakes and candy as it wants with out changing or raising the bodies available amount of glucose in the blood stream.
What is the difference between a theory and a law?
A law has been proven by experimental test and a theory has not been tested.
A law is true but a theory is not
A law describes an observed phenomenon but does not explain why the phenomenon exist or what causes it.
Populations of organisms numbers can be affected by a decrease in water, shelter, food, or space. This is know as a.....
Common Sense Factor
Mutualism
Limiting Factor
Commensalism
They image is a representation of what type of relationship?
Predation
Mutualism
Parasitism
Competition
In a mutualistic relationship...
One organism benefits while the other does not benefit from the relationship
Both organisms benefit from the relationship
Neither organisms benefit from the relationship
What type of evidence do scientist have to support the theory of evolution?
Present day ancestors
Photos
Fossils
How does Natural Selection give rise to new species?
Organisms fight to mate with the females in the population.
Organisms better adapted to an environment tend to survive and produce more offspring.
Some organisms are able to mate with other species.
What are the 3 Domains?
Archaea , Bacteria , Eukarya
Plants , Bacteria , Animals
Plants , Fungus , Bacteria
Name the six Kingdoms
Eukarya , Protist , Plants , Animalia , Eubacteria , Fungi
Plants , Animals , Protist , Fungi , Eukarya , Archaea
Eukarya , Eubacteria , Animalia , Fungi , Archaeae , Plants
Archaea , Eubacteria , Animalia , Protist , Plants , Fungi
How are organisms classified?
Organisms are classified according to their shared characteristics
Organisms are classified according to their names
Which is the correct order from smallest to largest
Organisms - cells - tissues - organs - molecules - organ systems - Atoms
Atoms - Molecules - cells - tissues - organs - organ systems - organisms
Atoms - Molecules - tissues - cells - organ systems - organism - organs
What part of the cell theory is missing
1.All cells come from preexisting cells
2.All living things are composed of cells
3._______________________________________
Cells are the smallest unit of life
Cells can not be broken
Cells don't come from other cells
The nucleus contains the cells genetic material in the form of DNA. DNA is organized into our chromosomes, which are made up of thousands of ________ that determine our traits
RNA
cells
gametes
genes
Which of these choices describes the purpose of a Punnett square?
to diagram family relationships that include several generations
to explain why some genes are recessive and others are dominant
to compare inherited traits to acquired traits
to illustrate how the alleles of parents might be passed on to their offspring
Examine the Punnett square.Which of the following choices gives the alleles of the parents shown here?
BB and BB
BB and Bb
Bb and Bb
Bb and bb
Which of these statements is correct according to the diagram?
Each offspring has a 25% probability of inheriting the alleles PP.
Each offspring has a 25% probability of inheriting the alleles Pp.
Each offspring has an equal probability of inheriting the alleles PP or Pp.
Each offspring is more likely to inherit pp than any other combination of alleles.
Plant cells contain a green pigment called chlorophyll. Chlorophyll has a role in the process of photosynthesis. What
does chlorophyll do?
produces the sugar glucose from oxygen
produces oxygen from the sugar glucose
absorbs light energy from the sun
absorbs the sugar glucose form the plant
The process of cellular respiration makes it possible for Kristine to run on the treadmill and to lift weights. What do her cells do during cellular respiration?
convert kinetic energy into chemical energy
absorb light energy through the chlorophyll in their chloroplasts
break down food molecules to release energy in the form of ATP
combine water and carbon dioxide to produce oxygen and glucose
Living systems obey the law of conservation of energy. Which of the following statements does NOT summarize a
key idea of this law?
During an ordinary chemical reaction no energy is created.
Energy can be changed in form during a chemical reaction.
During an ordinary chemical reaction no energy is destroyed.
Energy can be destroyed during an ordinary chemical reaction.
1. Plant cells are different from animal cells.
Compared to the structures in an animal cell, which of the following structures is found in a plant cell?
Cell Wall
Nucleus
Cytoplasm
Mitochondria
1. Which cell organelle directs all the activities of the cell?
Cell Wall
Cell Membrane
Chloroplasts
Nucleus
Controls what enters/leaves a cell
cell membrane
vacuole
cell wall
cytoplasm
Dante wants to match the types of cells with how they are produced. Which choice correctly pairs a type of cell with how it is produced?
egg cell—meiosis in males
sperm cell—mitosis in males
body cell—mitosis in females
body cell—meiosis in females
How do the chromosomes in a sex cell differ from those in a body cell?
A sex cell has half the number of chromosomes as a body cell.
A sex cell has twice the number of chromosomes as a body cell.
A sex cell has chromosomes that are half as long as those in a body cell.
A sex cell has chromosomes that are twice as long as those in a body cell.
Which of these choices is a product of mitosis?
egg
sperm
sex cell
skin cell
Which of these lists presents the stages of the cell cycle in the correct order?
interphase, mitosis, cytokinesis
cytokinesis, mitosis, interphase
mitosis, interphase, cytokinesis
interphase, cytokinesis, mitosis
which variable do you change in an experiment?
dependent variable
control variable
independent variable
How does the amount of sunlight effect plant growth. What would be the dependent variable in this experiment?
Soil
amount of water
amount of sunlight
plant growth
Purple flower color is dominant over white flower color. what would be the possible offspring's genotypes if you crossed a plant that is Homozygous Recessive with a plant that is Heterozygous.
Pp ; Pp ; pp ; pp
Pp ; Pp ; Pp ; Pp
pp ; pp ; pp ; pp
PP ; PP ; Pp ; Pp
