Free Printable Flow of Energy in an ecosystem

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Flow of Energy in an ecosystem

Total questions: 21

Worksheet time: 28mins

Name

Class

Date

In nature, energy is neither created not destroyed.

1st law of Thermodynamics

2nd law of Thermodynamics

Law of Biogenesis

What is thermodynamics?

movement of heat

it's magic

none of them

Place the ecology levels of organization in proper order (smallest to largest)

organism > population > community > ecosystem > biosphere

community > organism > ecosystem > biosphere > population

organism > community > biosphere > population > ecosystem

population > biosphere > ecosystem > community > organism

Which is a biotic factor?

producers

energy

humidity

What is an omnivore?

receives energy from the sun

only eats meat

only eats plants

eats both plants and meat

The direction of an arrow in a food chain represents

the flow of energy from organism B to A

the movement of organisms

the directionality of the sun

the flow of energy from organism A to B

An ecosystem is a location on Earth that includes

only biotic components

only abiotic components

interacting biotic and abiotic components

positive and negative feedback loops

Which one is NOT an example of a decomposer?

mushroom

leaves

mold

worm

Name the producers in this food web.

seagull and fish

penguin and crab

phytoplankton and seaweed

seaweed and zooplankton

10.

How many predators does the squid have?

11.

Energy is passed along the organisms in a food chain. What is the original source of the energy?

decomposers

consumers

producers

sun

12.

What is the name for the organism that eats the producer?

primary consumer

secondary consumer

tertiary consumer

producer

13.

In the energy pyramid here, how much of the energy in each level gets lost as heat or used by the organism for survival?

80%

90%

10%

20%

14.

If there is 1000 Kcal available in the producers in trophic level 1, how much energy is available in the herbivores in trophic level 2?

10 Kcal

1 Kcal

100 Kcal

1000 Kcal

15.

The diagram represents a model of a food pyramid. Which statement best describes what happens in this food pyramid?

More organisms die at higher levels than at lower levels, resulting in less mass at higher levels.

Energy is lost to the environment at each level, so less mass can be supported at each higher level.

When organisms die at higher levels, their remains sink to lower levels, increasing the mass of lower levels.

Organisms decay at each level, and thus less mass can be supported at higher levels

16.

Which level will contain plants?

17.

Does energy ebb and flow? Explain your answer and use complete sentences.

4 lines

18.

What are the nutrient cycles or biogeochemical cycles? List them and give a summary of each.

4 lines

19.

How many laws of thermodymanics are there? List them.

4 lines

20.

Why are photosynthesis and cellular respiration important to living organism?

4 lines

21.

Is this a food chain, food web, and/or energy pyramid? Why is it what you say it is and why is it not the other designations?

4 lines

100 %

Flow of Energy in an ecosystem

Total questions: 21

Worksheet time: 28mins

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