AP Biology: Unit 8 Review (CED) from @apbiopenguins

Front

What energy resource do chemosynthetic organisms use?

Back

Small inorganic molecules present in their environment.

Front

What type of signal does a cheetah use when it urinates on a tree?

Back

Chemical signal.

Front

What is a keystone species?

Back

An organism that is disproportionate relative to its abundance and whose removal causes ecosystem collapse.

Front

How do you calculate dN/dt in population dynamics?

Back

dN/dt = rN, where r is the growth rate and N is the population size.

Front

What type of relationship does mistletoe have with the mesquite tree?

Back

Parasitism.

Front

Define chemosynthesis.

Back

The process by which certain organisms convert inorganic molecules into organic matter using chemical energy.

Front

What is the difference between a dominant species and a keystone species?

Back

A dominant species is abundant and has a large biomass, while a keystone species has a critical role in maintaining the structure of an ecosystem.

Front

What is the role of primary consumers in an ecosystem?

Back

Primary consumers are organisms that eat producers (plants) and are essential for energy transfer in food webs.

Front

Explain the concept of mutualism.

Back

A symbiotic relationship where both species benefit from the interaction.

Front

What is the significance of r in population growth models?

Back

r represents the intrinsic growth rate of a population.