APES Unit 1&2 Review

Front

What is a characteristic of tropical rain forests?

Back

Their soils are relatively poor in nutrients.

Front

What is the direct result of lack of genetic diversity in a food crop such as corn?

Back

Increased susceptibility to plant disease.

Front

Which biome has the highest net primary productivity?

Back

Tropical rainforest.

Front

What is the major biological source of dissolved oxygen in the ocean?

Back

Photosynthesis by phytoplankton.

Front

What are carbon sinks?

Back

Forests and oceans that absorb carbon dioxide.

Front

What is the role of photosynthesis in the carbon cycle?

Back

Photosynthesis converts carbon dioxide into organic compounds, releasing oxygen.

Front

How does deforestation affect carbon dioxide levels in the atmosphere?

Back

Cutting trees reduces the number of carbon sinks, increasing carbon dioxide levels.

Front

What is the significance of genetic diversity in crops?

Back

Genetic diversity helps crops resist diseases and adapt to changing environments.

Front

What is net primary productivity (NPP)?

Back

The rate at which plants produce organic matter through photosynthesis minus the rate of respiration.

Front

What are the main characteristics of temperate grasslands?

Back

They have moderate rainfall, rich soils, and are dominated by grasses.