Ecosystems Basics 2022

A group of organisms that live in the same area and can reproduce is a(n)

• organism

• population

• community

• ecosystem

All the organisms that live in an area, along with nonliving things in the environment

• population

• community

• ecosystem

• biome

Individuals moving into an ecosystem area are

• immigrating

• increasing the birth rate

• dying off

• emigrating

Which are biotic factors?

• tree

• squirrel

• acorn

• all of these

The sun is the source of energy in all ecosystems on Earth. Which type of factor is sunlight?

• biotic

• abiotic

Abiotic facotrs are

• non-living parts of ecosystems

• once living but now dead parts of ecosystems

• living parts of ecosystems

• unimportant parts of ecosystems

Something in an ecosystem that causes a population to stop increasing

• community

• biosphere

• abiotic

• limiting factor

An example of an abiotic factor in a desert biome

• cactus

• sand

• snake

• fox

Wolves, disease and severe winters are factors that cause a deer population to

• increase

• decrease

The largest number of organisms that the environment can support

• limiting factor

• abiotic factor

• carrying capacity

• biotic facto