Science 6: Ecology

the group of all living creatures that are animals

A biologist who studies the relationship between organisms and their environment.

The study of how living things interact with each other and their environment.

One of two prokaryotic domains, the other being Bacteria.

A cell that contains a nucleus and membrane bound organelles

A unicellular organism that lacks a nucleus and membrane bound organelles

A community of organisms where there are several interrelated food chains

The process by which plants and some other organisms use light energy to convert water and carbon dioxide into oxygen and high-energy carbohydrates such as sugars and starches.

Microscopic organisms that live in aquatic environments; includes both phytoplankton and zooplankton

Organisms that make their own food

An organism that obtains energy and nutrients by feeding on other organisms or their remains.

Organisms that break down wastes and dead organisms and return raw materials to the environment

A rigid layer of nonliving material that surrounds the cells of plants and some other organisms.

A thin, flexible barrier around a cell; regulates what enters and leaves the cell

A jellylike fluid inside the cell in which the organelles are suspended