Unit 2 Review Questions 24-25

Front

What is a density-independent limiting factor?

Back

A density-independent limiting factor is a factor that affects the population regardless of its density, such as natural disasters like floods or droughts.

Front

What is mutualism?

Back

Mutualism is a type of symbiotic relationship where both species benefit from the interaction.

Front

What happens to predators and prey if a frog population dies out?

Back

If all frogs in a population die, the frogs' predators will decrease and the frogs' prey will increase.

Front

What is primary succession?

Back

Primary succession is the process of ecological change that occurs in an area where no soil exists, leading to the formation of soil and a new ecosystem.

Front

What is the role of photosynthesis in ecosystems?

Back

Photosynthesis is important because it produces food for the food webs, converting sunlight into energy for plants.

Front

What are pioneer species?

Back

Pioneer species are the first organisms to colonize previously uninhabited land, playing a crucial role in the process of ecological succession.

Front

What is a climax community?

Back

A climax community is a stable and mature ecological community that has reached a final stage of succession.

Front

What is the difference between primary and secondary succession?

Back

Primary succession occurs in lifeless areas without soil, while secondary succession occurs in areas where a disturbance has destroyed an existing community but left the soil intact.

Front

What is parasitism?

Back

Parasitism is a type of symbiotic relationship where one species benefits at the expense of another.

Front

What is commensalism?

Back

Commensalism is a type of symbiotic relationship where one species benefits and the other is neither helped nor harmed.