In an expirment on traffic, 20 cars are observed driving down a street in 4 hours. What rate of traffic was observed in this experiment?

A. 5 Cars per hour B. 2 C. 4 Hours D. 0.2 hours per car

Which of the below organelles is primarily involved with the cellular metabolism or the production of energy?

The nurse is caring for a pregnant client who is iron deficient. what groups are vulnerable to this condition? select all that apply.

What do you think is an advantage of a close circulatory system?

State the ecological importance of estuaries.

How does a wave affect energy? How does a wave affect matter

Which sphere does a volcanologist most directly study

Identify the components of seawater

Glycogen belongs in the class of molecules known as

1. The concentration of sugar is higher inside a cell than outside the cell. The concentration of water inside the cell is lower than it is outside. Sugar cannot pass through the cell membrane.

Which describes the variable that is changed to test the prediction? A) dependent B) experimental C) control D) independent