Question

1. what is the role of physical features like deserts in ecosystem distribution?

a. they increase the availability of water.

b. they have no significant impact.

c. they create environments where only specialized species can survive.

d. they promote high biodiversity like tropical rainforests.

Explanation:

• Option a: Deserts are arid with low water availability, so they don't increase water availability. Eliminate a.
• Option b: Physical features like deserts significantly shape ecosystems (e.g., limiting species types), so they have an impact. Eliminate b.
• Option c: Deserts have harsh conditions (low water, extreme temps), so only species adapted to such environments (specialized) can survive. This is correct.
• Option d: Deserts have low biodiversity compared to tropical rainforests, so they don't promote high biodiversity like rainforests. Eliminate d.

Answer:

c. They create environments where only specialized species can survive.