What is a purpose of a buffer in the body?

A) to prevent capillary action

B) to prevent sudden changes in pH

C) to prevent sudden changes in temperature

D) to prevent the formation of surface tension

How do scientists control the spread of disease?

Why are these resources referred to as fossil fuels

Compare compounds and mixtures and explain what happens to the properties of the original parts of each

What is food energy in the form of glucose?

Which terms identify the role of Fe2 + in the body?

What do amoeba proteus, dinoflagellate, and euglena viridis have in common? a. they all can move and make their own food b. they all can move and use eye spot to locate food c. they all can move and be heterotrophic d.

How is a scientific hypothesis best evaluated?

The overall population of a species decreased. What could have occurred to make this happen? The immigration rate increased, while the death rate decreased. The birth rate decreased, while the death rate increased.

Which of the following terrestrial biomes cannot be found in the United States? A: temperature deciduous forest B: tundra C: desert D: grassland/prairie

Which of these food sources does the bald eagle not feed on? plants fish carrion mammals