Problem 3 - Biology: The Dynamic Science

Question

Which of the following ecosystems has the highest rate of net primary productivity? a. open ocean b. temperate deciduous forest c. tropical rain forest d. desert and thornwoods e. agricultural land

Step-by-Step Solution

Answer

The ecosystem with the highest rate of net primary productivity is the tropical rain forest.

Step 1: Understanding the concept of Net Primary Productivity (NPP)

Net Primary Productivity (NPP) is the amount of energy (or carbon) that is left over after plants have met their own energetic needs, which they use for growth and reproduction. This is the energy available to herbivores and decomposers.

Step 2: Information on ecosystems and their NPP

Different ecosystems have different NPP values, affected by light, temperature, water availability, type of vegetation, etc. From the options provided we have: a. open ocean; b. temperate deciduous forests; c. tropical rainforests; d. deserts and thornwoods; e. agricultural land.

Step 3: Identify the ecosystem with highest NPP

Comparing these ecosystems, research has shown that the Tropical Rain Forests have the highest rate of net primary productivity. This is due to their location around the equator where sunlight is abundant and constant all year round, high rainfall, high temperatures, and a high diversity of plant species that can take advantage of these conditions.