Multiple Choice
Which terrestrial biome covers the largest part of Earth's surface?
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48. Ecology
Introduction to Terrestrial Biomes
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Which of the following attributes is characteristic of savannas but not of grasslands?
A
Presence of scattered trees
B
Frequent fires
C
High annual rainfall
D
Dominance of herbaceous plants
Verified step by step guidance1
Understand the key characteristics of savannas and grasslands. Savannas are ecosystems characterized by a mix of grassland and scattered trees, while grasslands are dominated by herbaceous plants with few or no trees.
Identify the role of trees in these ecosystems. In savannas, the presence of scattered trees is a defining feature, providing shade and habitat for various species, whereas grasslands typically lack significant tree cover.
Consider the climate and environmental conditions. Savannas often experience seasonal rainfall, which supports the growth of both grasses and trees, while grasslands may have less rainfall, supporting primarily grasses.
Evaluate the role of fire in these ecosystems. Both savannas and grasslands can experience frequent fires, which help maintain the dominance of grasses by preventing the overgrowth of trees and shrubs.
Analyze the options given: Presence of scattered trees, Frequent fires, High annual rainfall, Dominance of herbaceous plants. The presence of scattered trees is characteristic of savannas but not of grasslands, as grasslands are primarily dominated by herbaceous plants.
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