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

cytosine

phosphates

hydrogen bonds

adenine

thymine

sugars

guanine

In which of the following is most of the water on earth held on? a. rivers b. glaciers c. soil. d. the ocean

Into what kind of energy do animals convert chemical energy from molecules? A. rotational energy B. chemical energy C. physical energy D. mechanical energy

Which of these is a natural factor that affects the environment? Domestication Oxygen* Research Factories Am I correct?

Solely from its name, you should know that Rhizopus nigricans must be

Which do you think is a more basic characteristic for classifying animals? a. the place they live? b. the kind os cells they are made of. why?

Assuming that there are only two alleles at a given locus, if the frequency of one allele is 0.6, what is the frequency of the other allele? A. - 0.6. B. 0 C. 0.4 D. 0.6 E. 1

How do cells acquire positional information about their location in a developing embryo?

Which kind of solution is the concentration of solutes the same inside and outside if the cell

Identify the two primary fluids found within the eye. which one of these fluids provides nutrients to the rest of the eye

How are microscopes advantageous to scientist? name two examples when a biologist (or other scientist) may use a microscope?