Which product is common to both aerobic and anaerobic processes of cellular respiration?

A. ATP

B. ethyl alcohol

C. lactic acid

D. water

Brass gets discoloured in air because of the presence of which of the following gases in air? A. Oxygen B. Hydrogen sulphide C. Carbon dioxide D. Nitrogen

The thing that holds the two sides of the double helix together is:

Rna differs from dna in all except which of the following ways?

Which of these characteristics would be common to all of these organisms early in development? A) hair B) scales C) gill slits D) mammary glands

Compare and contrast an irritation from an adaptation. Use examples from your everyday world in your answer.

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