Aquatic Adaptations and Habitats PRACTICE

This is any variation that makes an organism better suited to its environment.

• Evolution

• Graduation

• Species

• Adaptation

All of the living and once living organisms

• selection factors

• necessary factors

• biotic factors

• abiotic factors

Which of the following describes soil and temperature in an ecosystem?

• selection factors

• necessary factors

• biotic factors

• abiotic factors

Which of the following is an ecosystem?

• neighborhood

• pine tree forest

• oyster reef

• all of the above

Which of the following best describes a population?

• all the red birds in the world

• members of the same species living in the same place at the same time

• all types of organisms living in the same place

• all the members of a species

The organisms most likely to belong to the same species are

• birds in a forest

• organisms in a pond

• people at a baseball game

• bacteria insides a person's body

The community of a pond is made up of all the

• populations of fish, insects, and other living organisms

• abiotic and biotic factors

• resources organisms need

• habitats in and around the water

Thick fur keeps deer warm in a cold environment is an example of

• evolution

• artificial selection

• resistance

• an adaptation

For evolution to occur in a population, individuals with a trait that is "naturally selected for" must

• live a long time

• leave the area

• reproduce

• co evolve

Some organisms are more likely to survive because they

• have certain physical traits

• lack certain physical traits

• have certain behaviors

• all of the above