EVERYDAY SCIENCE

Detailed explanation-1: -Answer and Explanation: One biotic factor that affects the size of a population in an ecosystem is the number and type of predators in that ecosystem.

Detailed explanation-2: -A biotic factor is a living organism and can affect population size of a species in an ecosystem. Biotic factors include predators, parasites, food supply, competition and human impacts.

Detailed explanation-3: -Ecosystems are influenced by both biotic and abiotic factors. Biotic factors include animals, plants, fungi, bacteria, and protists. Some examples of abiotic factors are water, soil, air, sunlight, temperature, and minerals.

Detailed explanation-4: -These density-independent factors include food or nutrient limitation, pollutants in the environment, and climate extremes, including seasonal cycles such as monsoons. In addition, catastrophic factors can also impact population growth, such as fires and hurricanes.

Detailed explanation-5: -An abiotic factor is a non-living part of an ecosystem that shapes its environment. In a terrestrial ecosystem, examples might include temperature, light, and water. In a marine ecosystem, abiotic factors would include salinity and ocean currents.