Question

a scientist claims that the primary factor determining a biomes vegetation is its average annual temperature. which of the following provides the strongest evidence to challenge this claim?
a. a desert and a tropical rainforest can have similar average temperatures but vastly different vegetation.
b. a temperate deciduous forest and a boreal forest can have similar average precipitation but different vegetation.
c. a grassland and a tundra can have similar insolation levels but different vegetation.
d. a desert and a tundra have different vegetation because their temperatures are so different.

Explanation:

The claim is that average annual temperature is the primary factor for a biome's vegetation. Option A shows two biomes (desert and tropical rain - forest) with similar average temperatures but very different vegetation, directly challenging the claim. Options B and C focus on other factors (precipitation and insolation respectively) and Option D supports the idea that temperature affects vegetation.

Answer:

A. A desert and a tropical rainforest can have similar average temperatures but vastly different vegetation.