Like dna, rna contains four nitrogenous bases. three of them are the same as those found in dna. the one that is different is called what?

Why do bacteria thrive even in hostile environments

3points hurry! what is the relationship between biotechnology, sharkskin, and disease resistance? bioengineers have developed an artificial sharkskin that does not allow resistant bacteria to grow on it. disease-causing microbes have been genetically modified to keep them from infecting the skins of sharks. scientists have created a device that can be attached to the skins of sharks that dramatically increases their abilities to resist disease. sharkskin produces many chemicals that can be collected and used to create antibiotics.

Compare the composition of the moon's surface with the composition of the earth's surface.