PPQs

Question 1

What is this the definition of?

All the populations of different species occupying a particular place at a particular time. (1)

Answer 1

Community.

Question 2

What is this the definition of?

A group of individuals of the same species occupying a particular place at a particular time. (1)

Answer 2

Population.

Question 3

What is this the definition of?

A community and its environment, considered together as a functional system. (1)

Answer 3

Ecosystem.

Question 4

What is this the definition of?

The place where individuals of a species live. (1)

Answer 4

Habitat.

Question 5

What component of biodiversity refers to the number of different species and the number of individuals of each species within any one community. (1)

Answer 5

Species diversity.

Question 6

What component of biodiversity refers to the variety of genes possessed by the individuals that make up a population of a species. (1)

Answer 6

Genetic diversity.

Question 7

What component of biodiversity refers to the range of different habitats, from a small local habitat to the whole of the Earth. (1)

Answer 7

Ecosystem diversity.

Question 8

Complete the sentence:
One measure of species diversity is ______ ______. This is the number of different species in a particular area at a given time. (1)

Answer 8

Species richness.

Question 9

How is the index of species diversity best described in agricultural ecosystems? (1)

Answer 9

Low.

Question 10

Which of the following reduce species diversity? (3)

• removal of hedgerows.
• growing mono-cultures.
• draining marsh and wetlands.
• allowing regeneration of woodlands.
• use of crop rotation.
• use of pesticides.

Answer 10

• removal of hedgerows.
• growing monocultures.
• draining marsh and wetlands
• use of pesticides.