Which of the following are considered bases in the DNA molecule? (There are 4 correct answers)

cytosine

phosphates

hydrogen bonds

adenine

thymine

sugars

guanine

Describe the positive or negative impacts eco-friendly technologies could have on our cryosphere, biodiversity, and human populations.

Which human activity negatively affects the stability of the environment? A. Riding bicycles O B. Planting trees O C. Recycling paper O D. Cutting down all trees in a forest

How many molecules of water are released during the polymerization of a 20 monomer long cellulose molecule

Global warming is a theory accepted by a majority of scientists. T F

When will hydrogen bonding occur?

8. List at least 5 new discoveries about viruses.

The phospholipid molecule has two parts, the polar end and the bipolar end. True or False?

Giraffes use their extremely long necks to reach the lees high up on a case he had trees which other animals can not reach giving them a food source for which they have few competitors what can you conclude about natural selection from this

Which is a reason that many organisms that have existed on earth have left no fossils?

Are all organisms with similar physical characteristics related to one another? If not, why?