Question

which factor(s) has the biggest influence on the flora and fauna of a terrestrial biome?

a. precipitation
b. temperature
c. precipitation and temperature
d. migration patterns
e. air quality

Explanation:

Terrestrial biomes are large ecological areas on the Earth's surface. Temperature affects the rate of biochemical reactions in organisms (e.g., enzyme activity in plants and animals is temperature - sensitive). Precipitation determines water availability. Both factors together shape the types of plants (flora) that can grow (e.g., cacti in arid, hot deserts vs. lush vegetation in warm, wet tropical rainforests) and the animals (fauna) that can survive there (as animals depend on the local flora for food, shelter etc.). Migration patterns (d) are more of a response of fauna to environmental conditions rather than a primary shaper of the biome. Air quality (e) can have local impacts but is not as globally - determining as temperature and precipitation. Options (a) and (b) only consider one factor, while in reality, both interact.

Answer:

C. Precipitation and temperature