Worksheets8th Grade Science Review 3 (Biodiversity)
Total questions: 7
Worksheet time: 6mins
Name
Class
Date
1.
During the winter season, animals travel to warmer places to find food, water, or safe nesting grounds. What Is this seasonal behavior called?
a)
estivation
b)
migration
c)
courtship
d)
hibernation
2.
An area that is occupied by one animal or a group of animals that do not allow other members of the species to enter is called a territory. Which of the following best describes why establishing a territory is a survival behavior?
a)
Establishing a territory is not a survival behavior.
b)
Establishing a territory makes it harder for an animal to find a mate.
c)
Establishing a territory decreases the genetic variation of a
population.
d)
Establishing a territory makes it easier for an animal to raise young
and find food.
3.
A variety of behaviors helps animals survive. Some behaviors are innate. An innate behavior is inherited through genes. Some behavior is learned. A learned behavior is a type of behavior that is learned through observation. Which one of the following is an example of learned behavior?
a)
the use of tools by chimpanzees
b)
the ability of humans to walk
c)
the courtship behavior of birds
d)
the tendency of puppies to chew
4.
An alligator is camouflaged by duckweed in a swamp. How is this an example of an adaptation?
a)
This is not an example of an adaptation.
b)
The duckweed helps the alligator swim faster.
c)
The alligator can blend in with the duckweed and sneak up on its
prey.
d)
The duckweed keeps the alligator cool during the summer.
5.
Which of the following structural adaptations would be best suited for an animal living in the tree canopies of a rain forest?
a)
short stiff tail, dog-like paws, short limbs
b)
long grasping tail, paws that can grasp, long limbs
c)
short stiff tail, paws that can grasp, short limbs
d)
long grasping tail, dog-like paws, long limbs
6.
Forms of reproduction are physiological adaptations. An animal that reproduces by external fertilization is more likely to survive in which of the following environments?
a)
Chattanooga River basin
b)
Alaskan tundra
c)
Sonoran desert
d)
Nebraska prairie
7.
Which of the following adaptations are best suited for survival in a mild environment with predators?
a)
hibernation
b)
estivation
c)
courtship
d)
defensive behavior
100 %
