Scelta multipla
Which choice below describes a feature of grassland that explains why its remnants are concentrated in arid regions of North America and central Asia?
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48. Ecology
Introduction to Ecology
Scelta multipla
Which of the following pairs of biomes is characterized by relatively simple food webs (low biological diversity)?
A
Tundra and grassland
B
Desert and grassland
C
Desert and broadleaf forest
D
taiga and savanna
E
Tundra and desert
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Understand that biomes with relatively simple food webs typically have low biological diversity. This means fewer species and simpler interactions between them.
Consider the environmental conditions of each biome. Tundra and desert biomes are characterized by extreme conditions (cold and dry, respectively) that limit the number of species that can survive there.
Recognize that tundra biomes have a short growing season and low temperatures, which restrict plant growth and, consequently, the diversity of herbivores and predators.
Acknowledge that desert biomes have limited water availability, which restricts plant growth and results in fewer species of plants and animals adapted to survive in such conditions.
Compare these characteristics with other biomes like grasslands, broadleaf forests, taiga, and savannas, which generally have more favorable conditions for a wider variety of species, leading to more complex food webs.
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