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Chapter 3 Test Adaptations
Test Description: This test will determine your knowledge on animal adaptations.
Instructions: Answer all questions to get your test result.
1) What are adaptations?
A
changes in the structure of a gene or chromosome
B
two genes working together to determine a trait
C
traits that help organisms survive in their environment
D
sperm cells and egg cells uniting to form a fertilized egg
2) Which of these is a basic need of an animal?
A
food
B
oxygen
C
water
D
all of the above
3) A bee's "dancing" is an example of a
A
defense against enemies.
B
learned response.
C
structural adaptation.
D
behavioral adaptation.
4) Which animal uses its gills to strain food particles out of the water?
A
a clam
B
a cormorant
C
a sea slug
D
a barracuda
5) What is the benefit to the octopus of shooting out water in a fast jet?
A
It helps to eliminate waste.
B
It helps to get food for the octopus.
C
It can move away quickly.
D
It allows the octopus to get oxygen.
6) What is the main function performed by the skin of a deer?
A
It prevents the deer from drying out.
B
It helps the deer maintain its shape.
C
It supports the deer\'s weight.
D
It helps the deer move.
7) A small tail and ears, hairy paws, and a fat layer help the polar bear because they allow the bear to
A
stay warm.
B
eat less.
C
find a mate.
D
drink less.
8) Some desert plants, like the barrel cactus, obtain water
A
only at night.
B
by speeding up photosynthesis.
C
through shallow roots that quickly absorb whatever rain falls.
D
by producing more chlorophyll.
9) How does the ermine's heavy white fur help it in the winter?
A
All of the above.
B
It keeps the ermine warm.
C
It allows the ermine tohunt prey undetected.
D
It hides the ermine from predators.
10) New variations in a species are due to
A
recessive genes.
B
dominant genes.
C
mutations.
D
selective breeding.
*select an answer for all questions
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