A level Bio 5.3 Energy and Ecosystems

Suggest two reasons for conserving rainforests (2)

Any two from :

Conserve/protect species/plants/animals/organisms for biodiversity

Conserve/protect habitats/niches

Reduces climate change

Source of medicines/drugs/wood

Reduces erosion/eutrophication

(for) tourism

Give three reasons for the low efficiency of energy transfer from secondary consumers to tertiary consumers in an ecosystem. (3)

Heat (loss from respiration (1)

Not all eaten (1)

Excretion(1)

1

2