4.7.2.1 levels of organisation

Question 1

What are the levels to organisation within an ecosystem (what is the food chain order)

Answer 1

Producers
Primary consumers
Secondary consumers
Tertiary consumers

Question 2

What are producers?

Answer 2

These are mainly green plants which produces glucose via photosynthesising— primary consumers often graze on producers as well as some secondary consumers

Question 3

What are primary consumers?

Answer 3

These usually eat plant material and often are herbivores

Question 4

What are secondary consumers?

Answer 4

These usually eat primary consumers or producers so are often omnivores — cats dogs foxes

Question 5

What are tertiary consumers?

Answer 5

These eat the secondary consumers and are often carnivores

Question 6

Define ‘prey’

Answer 6

The animals eaten by predators

Question 7

Define ‘scavengers’

Answer 7

These feed on dead animals like crows vultures and hyenas

Question 8

Define ‘decomposers’

Answer 8

These feed on dead / decaying organisms and on the undigested parts of plant and animal matter in faeces— usually bacteria or fungi