AP BIOLOGY

Detailed explanation-1: -Explanation: In photosynthesis, plants take in carbon dioxide to make glucose and oxygen. If plants are decreased, there won’t be enough plants to take in CO2, therefore CO2 will increase.

Detailed explanation-2: -Plant productivity supports wildlife and serves as the basis of a multitude of food chains. The decline of plants means there will be less food, which can further lead to declines in animal populations.

Detailed explanation-3: -If photosynthesis came to an abrupt end, most plants would die within short order. Although they could hold out for a few days–or in some cases, a few weeks–how long they lived would largely be a factor of how much sugar they had stored within their cells.

Detailed explanation-4: -The increased sediment concentration decreases the amount of light that reaches the plants. Why does a decreased rate of photosynthesis lead to a decrease in a plant population? Less water is available for absorption. Less tissue is available for plant growth.

Detailed explanation-5: -Plants and animals would most likely perish. Photosynthesis emits considerable oxygen into the air; the atmosphere contains very little oxygen.