__________________ how an organism survives, including its habitat, and how it obtains food and shelter; the role an organism plays in the environment.

________________ when organisms fight over food ,water, shelter, and mates.

_____________________ is the study of interactions between organisms.

___________________ the place or location in which an organism lives.

__________________ is an old growth forest with lots of species of organisms; a "mature" forest that has a lot of biodiversity.

_____________________ anything that restricts or limits the number of organisms in a population(like food, water, shelter, mates, sunlight)

_________________ the first organisms to grow on a rock such as lichen.

__________________ is the development of an ecosystem over time.

__________________ help recycle matter by breaking it down into simple, energy rich compounds.

A ______________________ is a simple model of the feeding relationship among organisms in an ecosystem .

Consumers that eat both plants and animals are called ___________________.

An example of an abiotic feature of an environment is_______________.

In the relationship between a raccoon and the fish in a stream, the raccoon is the _________________.

Which list includes only abiotic factors?

Organisms that make their own energy using sunlight through the process of photosynthesis are called __________________.

All of the living and non living things in an area are know as a(n)_________________.

A _____________________ is a group of organisms of the same species that live in the same area.

A black bear, white tail deer, and English oak tree are an example of a(n) ___________________________.

Mark each animal that is an herbivore.

Mark each animal that is a carnivore.

Mark each animal that is an omnivore.

Which organism is the tertiary consumer?

Which organism is an autotroph(producer)?

Which organism is a quaternary consumer?

Which organisms are heterotrophs?

A person ate salmon, that ate a smaller fish. The smaller fish ate a minnow. The minnow ate algae. The person is acting as what trophic level?

The mouse is considered a(n)

Which organism will be most affected if there were no insects?

The cougar is considered a

What type of succession is pictured?

What type of succession is pictured?

A lion and a hyena fight over a zebra carcass, this is an example of what type of interaction?

As bison walk through grass, insects become active and are seen and eaten by cowbirds. The relationship neither harms nor benefits the bison. What type of relationship is illustrated?

Wrasse fish feed on the parasites found on the black sea bass’s body. The wrasse fish get a meal and the black sea bass is helped by the removal of the parasites. What type of relationship is illustrated?

Mistletoe extracts water and nutrients from a spruce tree. The spruce tree is harmed. What type of relationship is illustrated?