Unit 6

All of the living and nonliving things in a given area at the same time is a ______.

Ecosystem

All of the populations in a given area is referred to as a ______.

Community

The role an organism plays in its environment and how it finds food, shelter, and mates is its ______.

Niche

Why does only 10% of energy get passed between trophic levels?

About 90% of energy is lost as heat through movement, cellular respiration, and maintaining body temperature. Some energy is also lost through waste and uneaten parts, leaving about 10% to be passed to the next trophic level.

The highest possible per capita growth rate for a population is its ______ growth rate.

Intrinsic

Organisms that receive their energy by only eating other organisms are called ______.

Consumers

Consumers that eat only producers are called ______.

Herbivores

Consumers that eat wastes are called ______.

Decomposers

A rabbit eats some grass, and a hawk then eats the rabbit. How much of the original energy does the hawk get?

1%

An organism that can be both an autotroph and a heterotroph is a ______.

Mixotroph

All the individuals of a particular species in a given area is a ______.

Population

Consumers that eat both consumers and herbivores are called ______.

Omnivores

What is the difference between a food chain and a food web?

A food chain shows one straightforward path of energy moving from a producer through consumers. A food web shows multiple food chains that are connected together.

Demography is the study of ______.

Populations

An ecosystem's ______ is the maximum number of individuals of a particular species that can be supported.

Carrying capacity

What does organismal ecology examine?

A species' physiological adaptations to its environment.

What does community ecology examine?

All the populations in a given area and how they interact.

What does population ecology examine?

All the individuals of a particular species in the same area.

What does biosphere ecology examine?

The largest scale questions, such as movement of abiotic and biotic components around Earth.

What does ecosystem ecology examine?

One or more communities interacting with the abiotic conditions.

When graphed out, the exponential growth model has a ______ shaped curve.

J

The formula for growth rate is ______ minus ______.

Births minus deaths

Alligators live in the Florida Everglades. The Everglades is the alligator's ______.

Habitat

The rest of Happy Valley where the pink-horned unicorn can survive is its ______.

Realized niche