Food chains, energy, biomass and cycles Flashcards Preview

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Flashcards in Food chains, energy, biomass and cycles Deck (10):
1

Pyramid of biomass:

Largest at bottom, gets smaller as it goes up.

2

Primary consumers

Eat plant material, herbivores.

3

Secondary consumers

Eat animal material, carnivores.

4

Decomposers

Feed on dead/decaying organisms.

5

Decay:

An essential life process that digests our food or waste matter and recycles materials. Microorganisms break down materials from living things. - These microorganisms are called Enzymes.

6

What are the factors affecting decay?

-Moisture
-Temperature
-Amount of available oxygen

7

Where is carbon found?

In all living things.

8

How is CO2 removed from the atmosphere?

Green plants and algae remove CO2 from the atmosphere by photosynthesis.

9

How is CO2 returned to the atmosphere?

Organisms return CO2 to the atmosphere through respiration.

10

Passing carbon between organisms:

When an animal eats a plant, carbon goes from the plant into the animal. Microorganisms then feed on waste from animals and waste from dead animals.