Feeding Relationships and Cycles

Question 1

Trophic level definition

Answer 1

the different stages in a food chain

Question 2

Producer definition

Answer 2

green plants which photosynthesise to make their own food from the sun

Question 3

Primary consumer

Answer 3

the animal that eats the producer

Question 4

Secondary consumer

Answer 4

the animal that eats the primary consumer

Question 5

Tertiary consumer

Answer 5

the animal that eats the secondary consumer

Question 6

Decomposers

Answer 6

Microorganisms that digest dead material and waste

Question 7

Consumer

Answer 7

An organism that eats another organism

Question 8

Herbivore

Answer 8

An animal that eats plants

Question 9

Carnivore

Answer 9

An animal that eats another animal

Question 10

What does interdependent mean?

Answer 10

if one species change in number it will affect all of the others

Question 11

What are reasons for the knock on effect of interdependent species? (e.g. if one species decreases/increases why does the other species also decrease/increase):

Answer 11

Less/more competition
Less/more food
Less/more predation

Question 12

What do food webs show?

Answer 12

how food chains are linked

the arrows show the direction of energy transfer

all the species in a food web are interdependent

Question 13

What do pyramids of biomass show?

Answer 13

the mass of living material at each stage of the food chain