MidTerm Review Part 1

Front

Which two systems work together to move the body?

Back

The muscular and skeletal systems work together to enable movement in the body.

Front

What are organisms that break down dead organisms and recycle nutrients back into the ecosystem called?

Back

These organisms are called decomposers.

Front

What gas makes up 78% of our atmosphere?

Back

Nitrogen is the gas that constitutes 78% of our atmosphere.

Front

Which body system helps the respiratory system distribute oxygen and return waste carbon dioxide to the lungs?

Back

The circulatory system assists the respiratory system in distributing oxygen and returning carbon dioxide.

Front

What are natural overlapping food chains in an ecosystem called?

Back

Natural overlapping food chains are referred to as a food web.

Front

What is the function of decomposers in an ecosystem?

Back

Decomposers break down dead organic matter, returning nutrients to the soil and supporting new plant growth.

Front

What is the role of the circulatory system in the body?

Back

The circulatory system transports oxygen, nutrients, and waste products throughout the body.

Front

Define a food chain.

Back

A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another.

Front

What is the difference between herbivores, carnivores, and omnivores?

Back

Herbivores eat plants, carnivores eat animals, and omnivores eat both plants and animals.

Front

What is an energy pyramid?

Back

An energy pyramid is a graphical representation showing the flow of energy at each trophic level in an ecosystem.