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Interdependence - Life Science

Total questions: 10

Worksheet time: 6mins

Name
Class
Date
1.

Looking at the energy pyramid, which organism provides the greatest amount of energy?

a)

phytoplankton

b)

zooplankton

c)

predator fish

d)

birds

2.

These fungi are performing an important function in an ecosystem. That function is...

a)

creating oxygen

b)

making glucose

c)

recycling nutrients

d)

creating carbon dioxide

3.

Within this food chain which organism has the greatest amount of energy?

a)

large fish

b)

algae

c)

bears

d)

small fish

4.

Bears and wolves both eat large herbivores, like deer. If there are not enough deer in an ecosystem with bears and wolves, the two predators will fight over the prey. What is this type of relationship called?

a)

commensalism

b)

mutualism

c)

parasitism

d)

competition

5.

Bacteria that live in the intestines of humans help to complete the digestive process. In return, the bacteria get nutrients and protection. This is an example of:

a)

mutualism

b)

parasitism

c)

commensalism

d)

competition

6.

The flu virus is not considered a living thing but it depends on living cells for energy, reproduction, and protection at the expense of the cells they invade. This is an example of:

a)

commensalism

b)

parasitism

c)

mutualism

d)

competition

7.

An example of commensalism is:

a)

A tick living off the blood of a dog. The tick is helped but the dog is harmed.

b)

A snake and a tortoise share a burrow. Both are helped.

c)

A remora fish sticks to a shark and eats the scraps of food the shark leaves behind. The shark is not harmed

d)

Bears and Wolves fight over a deer kill.

8.

If a group of purple hairstreak butterflies live in an isolated damp meadow and the larvae only feed on a type of mountain clover that grows in the meadow, what would happen if a fungus caused the clover plants to die off?

a)

The butterflies would increase in population

b)

The larvae would switch to a different type of food

c)

The butterflies would evolve to adapt

d)

The butterflies could become extinct

9.

Animal populations in nature will:

a)

continue to grow indefinitely

b)

never change

c)

be limited by environmental factors

d)

only be limited by genetic mutations

10.

The foxes in a forest primarily feed on a population of mice. A recent disease has caused the mice to die off. What is the best prediction about what will happen to the foxes?

a)

The population of foxes will decline

b)

The population of foxes will not change

c)

The population of foxes will increase

d)

The population of foxes will become extinct