Science Unit 7 lesson 3

Front

What is the original source of most food energy?

Back

sunlight

Front

What organisms change energy from sunlight to food for other organisms?

Back

producers

Front

A pet owner dropped some new fish into a pond. Several species of fish lived in the pond, but within a few months, only members of the new species survived. What BEST explains why this happened?

Back

Too many fish caused an imbalance in the ecosystem, so the food web was affected.

Front

What is MOST LIKELY to happen if most of a population of animals dies of disease?

Back

The food web will change.

Front

Which of these things that animals need travel through a food chain?
herbivores, ecosystems, air and sunshine, nutrients and minerals

Back

nutrients and minerals

Front

A hawk and an owl compete for the same food in the same food web. What is the MOST LIKELY reason why they are both able to succeed?

Back

One hunts at night, and the other hunts during daytime.

Front

A ________ is a model of overlapping food chains in which the flow of energy branches out in many directions.

Back

food web

Front

A ________ is a model that shows the transfer of energy from one organism to another.

Back

food chain

Front

Food chains begin with _________ from the sun.

Back

energy

Front

In this food chain, grass is a ___________?

Back

producer