Organisms and Their Environments (AFL)

Organisms’ adaptations are suited to their environment. Which of the following is an example of this?

• Polar bears have thick fur to insulate against cold temperatures.

• Cacti have thin leaves to minimize water loss.

• Fish have gills to extract oxygen from water.

• All of the above.

The primary energy source in a food chain is:

• Sunlight

• Water

• Soil

• Plants

The flow of energy in a food chain can be described as:

• Energy flows from producers to consumers.

• Energy flows from consumers to producers.

• Energy flows in a circular manner.

• Energy does not flow in a food chain.

Environmental factors that affect plant growth include:

• Light, temperature, water, and nutrients

• Only water and nutrients

• Only temperature and light

• None of the above

Camouflage helps animals survive by:

• allowing them to blend into their environment and avoid predators

• making them more visible to predators

• helping them find food more easily

• making them more attractive to mates

What type of a trait is the reptile color?

• It is an environmental trait that is learned from its parents.

• It is a trait that only appears in a designed environment.

• It is a trait received from its parents that changes with the environment.

• It is a trait received from its parents that does not change with the environment.

How does blubber help animals survive in cold environments?

• It keeps them dry.

• It stores energy and keeps them warm.

• It helps them swim faster.

• It makes their fur thicker.

What happens to an Arctic fox's fur in the winter?

• It grows longer to trap heat.

• It becomes white to blend with the snow.

• It falls out to stay cool.

• It becomes brown to match the soil.

What causes the color difference between wild and captive flamingos?

• Temperature of their habitat

• Differences in diet

• Exercise levels

• Amount of sunlight exposure

Some animals migrate in winter. Why do you think this helps them survive? Choose the best reason and explain why.

• They like to travel.

• They move to find food and warmth.

• They enjoy different seasons.