In the following passage, the numbered spaces can be filled with biological terms.

An ecosystem supports a certain size of population of a species, called the (1) capacity. There are often numerous habitats within an ecosystem. Within a habitat, a species occupies a (2) governed by an adaption to both (3) and biotic conditions. Populations of different species form a (4).

Write the correct biological term beside each number below that matches the space in the passage.

1

2

3

4

Suggest two reasons for conserving rainforests.

1

2

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

1

2

3