Chapter 1.3

Question 1

What is a biosphere?

Answer 1

Zone of air, land and water where organisms exists

Question 2

What happens to chemicals when death and decomposition occur?

Answer 2

Chemicals are returned to living plants

Question 3

Where does energy flow?

Answer 3

Energy flows through plants and other members of the food chain.

Question 4

Humans depend upon ecosystem for (3)

Answer 4

1. Food
2. Medicines
   3.Raw material

Question 5

What is Biodiversity?

Answer 5

The total number of relative abundance of species. The variability of their genes, and the ecosystem in which they live in.

Question 6

Extinction

Answer 6

The death of the last member of a species