AP BIOLOGY

Detailed explanation-1: -Human activities such as burning fossil fuels, deforestation, urbanization and agriculture impact energy flows as well as the carbon and nitrogen cycles.

Detailed explanation-2: -Energy balance of the ecosystem is altered due to human actions. Various anthropogenic actions impact the working efficiency of the ecosystem and thus it becomes difficult for the ecosystem to adapt according to new changes in the environment.

Detailed explanation-3: -These include solar energy input, temperature and moisture levels, carbon dioxide levels, nutrient availability, and community interactions (e.g., grazing by herbivores) 2. These factors affect how many photosynthesizers are present to capture light energy and how efficiently they can perform their role.

Detailed explanation-4: -Food webs model matter and energy transfer A food web is a model of feeding relationships in an ecosystem. When an organism is eaten, the matter and energy stored in its tissues are transferred to the organism that eats it. The arrows in a food web represent this transfer.

Detailed explanation-5: -Human activity: Activities carried out by humans that affect the cycle of matter on a global scale. This include mining, burning of fossil fuels, the clearing of land for building and farming, and the burning of forests.