A table exerts an upward force on a pencil. What type of force is this?

A. weight

B. normal force

C. frictional force

D. gravitational force

Rising sea levels would affect more than coastlines. What factor might increase enough in freshwater wetlands to affect plant and animal life? A. turbidity B. salinity C. gravity D. permeability

Which group of organic compounds is responsible for the transfer and storing of information

A closed circuit occurs when A. the circuit is "on". B. the circuit is "off". C. the circuit is incomplete.

The effect of regular exercise on heart and lung function is known as

Explain in your own words, how birth rates and death rates influence the number of organisms in an ecosystem.

What type of reproduction results in offspring that are genetically different from the parents

In genetics is the mother x or y?

The "ball of the foot" normally carries about 40% of the weight of the body. What is the ball of the foot?

Why might a baby be born early if the mother smokes?

It is crucial that the process or mitosis is error free. this is because otherwise healthy cells can