Which of the following bases is used in RNA but not DNA?

a. adenine

b. thymine

c. uracil

d. guanine

Why do you think that dna is only found in the nucleus of the cell?

Lymph carries all of the following except

can someone answer these equations 2x + 7 = and 3x - 5 =

True or false? vaccination not only keeps the individual from contracting a disease but also makes it harder for the pathogen to find susceptible hosts.

What ecological pyramid is "The rule of 10" associated with?

Genetic disorders can result when sister chromatids fail to separate properly. During which phase is this problem most likely to occur? A: g1 phase B:g0 phase C: Cytokinesis D:Mitosis

4. Which change describes a demographic transition? a. a population moves from a high birthrate and death rate to a high birthrate and low death rate b. a population moves from a high birthrate and low death rate to a low birthrate and death rate c.

Changes in genes within a kind do not form a different kind. true or false

This is the energy that comes to Earth from the sun.

If we increase our food intake, we generally gain weight. nutrition scientists can calculate the amount of weight gain that would be associated with a given increase in calories.