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Ecological Roles + Symbiotic Relationships

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

Which of the following is an ABIOTIC factor of this ecosystem?

a)

turtle

b)

fish

c)

coral

d)

water

2.

What is the original source of energy for MOST ecosystems?

a)

producer

b)

sun

c)

decomposer

d)

matter

3.

In this food web, what is the source of energy for the goat?

a)

jackal

b)

sun

c)

green plant

d)

rabbit

4.

In this food web, what is the ecosystem role of the kite (eagle)?

a)

primary consumer

b)

secondary consumer

c)

tertiary consumer

d)

quaternary consumer

5.

In this food web, what is the ecosystem role of the rabbit?

a)

producer

b)

primary consumer

c)

secondary consumer

d)

primary consumer AND secondary consumer

6.

Which organism in this ecosystem is an herbivore?

a)

weasel

b)

frog

c)

goldfinch

d)

all are herbivores

7.

The Great Horned Owl is protected by law in many states due to its extremely low and declining population size. The law prevents development in areas identified as "crucial habitat" for the Great Horned Owl, including many old-growth forests. Predict the impact on this ecosystem if this law were removed or no longer enforced.

a)

The population of Great Horned Owls would decrease.

b)

The population of weasels would increase.

c)

The population of red fox would increase.

d)

All options are possible.

8.

What percent (%) of energy found in each organism is successfully passed on to each trophic level?

a)

100%

b)

10%

c)

50%

d)

0%

9.

What happens to the other 90%?

a)

lost as heat

b)

used by the organism in digestion/metabolism

c)

not consumed (bones, fur, etc)

d)

all are correct

10.

JUST FOR FUN: What is this animal, which is the cutest animal, and also Mrs. Edlind's favorite animal?

a)

seal

b)

sea lion

c)

sea otter

d)

dog

11.

Wasps often lay their eggs just inside the eggs of butterflies. The wasp larva (baby wasps) are able to get lots of nutrients and protection from the butterfly/caterpillar egg while its developing. After the caterpillar is born, the wasps continue lurking in the flesh of the caterpillar, soaking up more nutrients and drinking its blood. The wasp larva must keep its host alive, so it avoids damaging the vital organs.

What type of symbiosis is being described?

a)

predator/prey

b)

competition

c)

commensalism

d)

parasitism

12.

All 3 are examples of...

a)

mutualism

b)

commensalism

c)

parasitism

d)

cooperation

13.

This is a picture of lichen. In this relationship, the algae provide nutrients while the fungus protects the algae from extreme weather.

a)

competition

b)

predator/prey

c)

mutualism

d)

commensalism

14.

If you had to guess, what symbiotic relationship do you think is being shown here?

a)

intraspecific competition

b)

predator/prey

c)

inter-specific competition

d)

mutualsim

15.

Which is NOT an example of a limiting factor organisms might compete for?

a)

mates

b)

territory

c)

sunlight

d)

position on the food chain