Hawk eating a rabbit.

The study of how humans interact with the environment.

A group of the same species such as a herd of cows.

One animal surviving better because of a trait is an example if this.

A plant is an autotroph or heterotroph.

A leech on a persons leg.

The change in a species over time is called this.

A single animal

A mutation that helps an organism survive better is an example of an ______________.

A pig is an example of a carnivore, omnivore or herbivore?

A bird picking ticks off of a cow.

Give an example of a heterotroph.

All the communities and the physical environment is this.

Two species evolving in response to each other is called this.

The amount of energy lost from one trophic level to the next.

A remora swimming along with a shark eating scraps from the shark's meals.

An organism's role in its community is called this.

A pack of wolves hunting a herd of reindeer is an example of a _________________ interaction.

A bacteria not being effected by and antibiotic is an example of this.

This process is used by producers to make energy from the sun's light.

A relationship in which one organism benefits and the other gets neither helped nor harmed.

Define abiotic and provide an example.

All the ecosystems on earth.

A farmer picking larger tomatoes for seeds is an example of this type of selection.

The first heterotroph on a trophic pyramid are what type of consumer?