Chapter 3: The Bioshphere

An example of a BIOTIC factor is

Autotrophs are organisms that

Autotrophs are also known as

During this process producers use the sunlight to produce oxygen.

The study of interactions amoung organisms and the environment is

What is the main energy source on earth?

A producer in science

'BIO' means

The smallest level of organization is

Gropus of different species that live together in a defined area make up a (an)

This process does not use light to produce oxygen.

We need energy to

Obtains energy from dead organisms.

Experimenting can be used to test hypothesis.

These consumers recycle nutrients back into the ecosystem.

All life on earth exists in a region known as

Obtains energy from plants

Which is an example of an ABIOTIC factor?

Observing is a method used by ecologists to design experiments and models.

Which of the organisms is a decomposer?

'Sphere' means

Obtains energy from meat.

'BIOSPHERE' means

Obtains energy from both plants and meat.

Heterotrophs are also called

The level of organization where it is a group of individuals that live in the same area

What contains a number of ecosystems?