the wood in a match is made up of cellulose, which is a polymer of glucose molecules. when you light the match, heat and light are given off, indicating that a/an

The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.

What are two reasons for why a species might disappear from the fossil record?

Why does it matter if osmosis is put into a “scab” or a “nosebleed? ” where would that leave him?