Ecology Review

What is Ecology?

• movement of specific molecules across cell membranes

• study of interactions among organisms and their environment

• substance consisting entirely of one type of atom

• outermost germ layer of most animals

All of life on Earth exists in a region known as?

• an ecosystem

• a biome

• the biosphere

• ecology

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

• population

• community

• ecosystem

• biosphere

Autotrophs are organisms that

• rely on other organisms for their energy and food supply

• consume plant and animal remains and other dead matter

• use energy they take in from the environment to convert inorganic molecules into complex organic molecules

• obtain energy by eating only plants

The series of steps in which a large fish eats a small fish that has eaten algae is a

• food chain

• food web

• pyramid of numbers

• biomass pyramid

Nutrients move through an ecosystem in

• biogeochemical cycles

• water cycles

• energy pyramids

• ecological pyramids

The greenhouse effect causes an increase in

• carbon dioxide

• temperature

• oxygen

• water

A form of symbiosis in which one organism benefits and the other is harmed is called

• mutualism

• commensalism

• predation

• parasitism

Natural disturbances such as fires or hurricanes, can result in ______________.

• commensalism

• competition

• parasitism

• succession

Tags

NGSS.MS-LS2-4

Organisms that live near or on the ocean floor are called

• parasites

• benthos

• plankton

• mangroves