Feeding Relationships

Question 1

Producer

Answer 1

An organism that makes its own food e.g. green plants

Question 2

Primary consumer

Answer 2

An organism that eats producers

Question 3

Secondary consumer

Answer 3

An organism that eats primary consumers

Question 4

Tertiary consumer

Answer 4

An organism that eats secondary consumers

Question 5

Decomposer

Answer 5

An organism that feeds by breaking down dead remain of other organisms e.g. some fungi and bacteria

Question 6

Food chain

Answer 6

A flow diagram showing feeding relationships in an ecosystem

Question 7

Food web

Answer 7

A diagram showing the way in which several food chains are linked together in an ecosystem

Question 8

Pyramid of numbers

Answer 8

A diagram in which blocks making up a pyramid represent the total number of organisms at each trophic level

Question 9

Pyramid of mass

Answer 9

A diagram in which blocks making up a pyramid represent the total mass of organisms at each trophic level

Question 10

Pyramid of energy transfer

Answer 10

A diagram in which blocks making up a pyramid represent the total energy stored in organisms at each trophic level

Question 11

Why does only about 10% of energy transfer from one trophic level to the next?

Answer 11

Because energy is lost as heat from metabolic/life processes or sunlight entering the system is reflected or not all material is consumed/digested