Exam 4 Review

Front

What is a niche in an ecosystem?

Back

A niche is the role or function of an organism within its ecosystem, including its habitat, resource use, and interactions with other organisms.

Front

What is mutualism?

Back

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

Front

What is an example of mutualism?

Back

The relationship between clownfish and sea anemones, where clownfish get protection and sea anemones get food scraps.

Front

What is ecological succession?

Back

Ecological succession is the process by which ecosystems change and develop over time, often following a disturbance.

Front

What are invasive species?

Back

Invasive species are non-native organisms that spread rapidly in a new environment, often causing harm to native species and ecosystems.

Front

What is a density-dependent factor?

Back

A density-dependent factor is a factor that limits population size based on the population's density, such as competition for resources.

Front

What is bioaccumulation?

Back

Bioaccumulation is the process by which substances, such as pesticides, accumulate in an organism's body over time.

Front

What is the significance of keystone species?

Back

Keystone species are organisms that have a disproportionately large effect on their environment relative to their abundance, maintaining the structure of the ecosystem.

Front

What is the role of decomposers in an ecosystem?

Back

Decomposers break down dead organic matter, recycling nutrients back into the ecosystem.

Front

What is the difference between primary and secondary succession?

Back

Primary succession occurs in lifeless areas where soil has not yet formed, while secondary succession occurs in areas where a disturbance has destroyed an existing community but soil remains.