A heritable trait that increases an individual’s fitness is called

"Traits that improve an organism’s chance

of survival are passed on more frequently

to future generations than traits that do not" is the idea associated with

A relationship in which one organ-ism benefits from, but harms, a host organism is called

A relationship in which two or more species benefit is called

A relationship in which one species benefits and the other is unaffected is called

An organism that captures energy from the sun or from and stores it, making energy available to the rest of the community is called a(n)

An organism that is a primary consumer and eats plants is called a(n)

A species that has strong or wide-reaching impact on a community

The building of a community when bare rock, sand, or sediment is exposed for the first time is called

The building of an ecological community after a disturbance

has altered the community, but not destroyed all living things or organic matter in the soil is called

A nonnative organism that spreads widely in a community is called a(n)