Temperature, light, air, water, and soil are all _____ parts of the environment

Is a deer an abiotic or biotic factor?

Is a fern an abiotic or biotic factor?

Is a weather an abiotic or biotic factor?

Is sunlight an abiotic or biotic factor?

A living or once-living organisms in an ecosystem is a

Which of the fallowing has only abiotic factors?

Temperature

Starfish

Sunlight

_______________ are the living factors in an environment and may include food sources and other populations.

Marcus left his candy bar on the counter so he would have a treat after school. When he arrived home, he saw that the candy bar was half eaten. What did Marcus know from the evidence he got by observing the candy bar?

Identify a statement below that could cause a population to change?

Mary used iodine to test a substance for starch. The color of the iodine placed on the substance was orange. What was the result of Mary’s test?

An animal species move into a new ecosystem. What kinds of factors increase the likelihood that they will survive in the new environment?

What is competition?

Populations can be stable

even if they fluctuate, as

long as all three organisms

are able to survive.

In a healthy ecosystem, biotic and abiotic elements interact in a way that keeps the ecosystem stable. That means life goes on in the __________ as usual.

Bioaccumulation is the term scientists use when they talk about how some pollutants enter and build up, or accumulate, in an organism at the beginning of a __________ chain.

Organisms in an

ecosystem compete for

limited resources like

space, food, and water.

When there is not enough

of a resource, individuals

in the population die.

All plants and animals

have special structures that

perform the functions

necessary for reproduction

and eating.

An organism that eats grass and insects is

Why does every animal in an ecosystem rely on producers?

Which organism is a decomposer?

Plants use photosynthesis to make