Ecosystem 4

What is symbiosis?

• the relationship between precipitation and animals in an ecosystem

• the relationship between two organisms in a community

• the relationship between animals and their habitat

• the relationship between plants and the sun

A tapeworm lives inside an animal and eats the food that the animal digests. What type of symbiosis is this?

• mutualism

• parasitism

• commensalism

• succession

Which of the following is an example of commensalism?

• fleas on a dog

• Egyptian plovers and crocodiles

• bees and flowers

• flowers growing up a tree

Who is the host in parasitism?

• the organism that is not affected by the relationship

• the organism that is not affected by the relationship

• the organism that is not a part of the relationship

• the organism that is harmed as a result of the relationship

An insect pollinating a flower is what type of symbiosis?

• commensalism

• mutualism

• food web

• parasitism

A species has physically adapted by using camouflage. What is true?

• The species “played dead” to avoid predators.

• The species has hibernated to avoid predators.

• The species has migrated to avoid predators.

• The species blended in with its surroundings to avoid predators.

What is another term for inherited behaviors?

• instinct

• natural selection

• hibernation

• physical adaptation

How did amphibians adapt to their changing environment?

• They played dead to trick predators.

• They developed fins and gills.

• They hibernated for many months in the winter.

• They developed lungs and limbs.

What happens to unnecessary traits during the process of natural selection?

• They are passed on to all future generations.

• They are passed on to some organisms, but not to others.

• They gradually disappear over time.

• They disappear very suddenly.

What is the goal of both physical and behavioral adaptations?

to help an animal survive in its environment

to increase the likelihood of being eaten by a predator

to put an end to the survival of weaker animals

to avoid natural selection

• to increase the likelihood of being eaten by a predator

• to avoid natural selection

• to help an animal survive in its environment

• to put an end to the survival of weaker animals