Question 1

How are single-celled organisms and multi-celled organisms similar?

Accepted Answer

Both need food for energy and growth.

Answer

Both require the interaction of many cells to survive.

Answer

Both are able to carry out all life functions in only one cell.

Answer

Both have a skeletal system for support.

Question 2

Which one of these is a behavioral characteristic passed from parent to offspring in dogs?

Accepted Answer

barking

Answer

sitting on command

Answer

rolling over

Answer

fetching

Question 3

Which information would be most helpful in determining the climate of a particular area?

Accepted Answer

Local weather station records from the last ten years

Answer

Today’s data from a school weather station

Answer

Temperature records from the previous month

Answer

A news report of yesterday’s weather

Question 4

Which best describes the importance of photosynthesis in an ecosystem?

Accepted Answer

It allows plants to create energy and pass it along to other members of the ecosystem.

Answer

It allows scavengers to create energy and pass it along to other members of the ecosystem.

Answer

It allows decomposers to create energy and pass it along to other members of the ecosystem.

Answer

It allows animals to create energy and pass it along to other members of the ecosystem.

Question 5

Which best describes a relationship between the roles of the digestive and circulatory systems?

Accepted Answer

The digestive system gets nutrients into the blood, and the circulatory system transports the blood.

Answer

The digestive system gets oxygen to the blood, and the circulatory system transports the blood.

Answer

The digestive system helps your body move, and the circulatory system helps your body respond to the world.

Answer

The digestive system breaks down food into nutrients, and the circulatory system provides a framework to support your body.

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