STAAR 2018 Review -2-Plants and Animals

Which of these animal activities is most like the stage of the life cycle in which seeds are released?

• a snake shedding its skin

• a bird laying an egg

• a swarm of bees leaving a hive

• a tadpole growing into an adult

Which of these is a trait that a crayfish most likely inherits from its parents?

• the average distance it travels each day

• the number of legs it has

• the amount of food it eats each day

• the type of plants in its habitat

Which is a learned behavior for this squirrel?

• building a nest each spring

• taking food from people

• having a long, bushy tail

• having sharp claws

Which of these is a learned behavior of a dog?

• begging for food

• drinking water

• panting on a hot day

• chewing on a bone

Which of these is a behavior that a person learns rather than inherits?

• swallowing a sweet liquid

• having a pleasant dream

• digesting a chocolate covered strawberry

• identifying the scent of a rose

Which substance is needed by plants to survive and released into the environment by animals?

• oxygen

• sugar

• salt

• carbon dioxide

What effect could an invasive plant have on an area?

• the water supply in the area would increase

• weather patterns in the area would change

• the number of other plants would increase

• the population of native plants would decrease

What would happen if all the rabbits in an area were removed?

• the populations of predators that eat rabbits would decrease

• the populations of predators that eat rabbits would increase

• the nutrients in the soil would encrease

When fertilizers run off into streams it sometimes kills the fish. Which other population would decrease if this happens?

• organisms that eat the fish

• organisms that eat algea

• organisms that fish eat

What role do hawks play in this food web?

• prey

• producer

• decomposer

• consumer