Why have plants in the alpine biome adapted to survive on limited nutrients?

• A. Because the soil in alpine regions is often thin and low in nutrients due to slow decomposition rates.
• B. Because the high temperatures in alpine biomes increase nutrient availability.
• C. Because alpine plants receive more sunlight, which compensates for nutrient deficiency.
• D. Because frequent flooding in alpine regions washes away excess nutrients.

Answer: (A)

Verified step by step guidance

1. Understand the characteristics of the alpine biome: Alpine biomes are typically found at high altitudes where conditions are cold, windy, and harsh. The soil in these regions is often thin and nutrient-poor due to slow decomposition rates caused by low temperatures.
2. Analyze the role of decomposition in nutrient availability: Decomposition is a process where organic matter breaks down, releasing nutrients into the soil. In alpine regions, the cold temperatures slow down this process, resulting in limited nutrient availability.
3. Evaluate the impact of sunlight on nutrient deficiency: While alpine plants may receive more sunlight due to their elevation, sunlight alone cannot compensate for the lack of nutrients in the soil. Nutrients are essential for plant growth and cannot be replaced by sunlight.
4. Consider the effects of flooding in alpine regions: Frequent flooding is not a characteristic of alpine biomes. Instead, the soil is often dry and rocky, further limiting nutrient availability.
5. Conclude why plants adapt to nutrient limitations: Plants in alpine biomes have evolved adaptations such as slow growth rates, specialized root systems, and symbiotic relationships with microorganisms to survive in nutrient-poor soils.