Ap bio unit 1

Innate behavior

Behavior that is genetically programmed and present from birth; performed correctly the first time without prior experience or learning (e.g. a spider spinning a web or a sea turtle hatchling crawling toward the ocean).

Learned behavior

Behavior that develops or changes as a result of experience observation or practice rather than being fixed at birth (e.g. a dog learning to sit for a treat).

Fitness

A measure of an organism's ability to survive and pass its genes on to the next generation relative to other individuals in the population.

Differential reproductive success

The concept that individuals with certain traits reproduce more or less successfully than others in the same population leading those traits to become more or less common over time — the mechanism driving natural selection.

Organism

A living thing.

Endotherm

An animal that makes its own body heat.

Ectotherm

An animal that gets its body heat from its surroundings.

Reproductive strategy

The way an organism goes about producing and raising offspring.

Ecosystem

Living things and their environment interacting together in one area.

Producer

An organism that makes its own food.

Consumer

An organism that eats other organisms for food.

Trophic level

An organism's position in a food chain.

Autotroph

Another word for a producer.

Heterotroph

Another word for a consumer.

Chemosynthesis

Making food using energy from chemicals instead of sunlight.