a resting neuron is an unstimulated neuron that is not presently generating an action potential. the resting membrane potential is the separation of the relative positive and negative charges across the membrane of a cell at rest.

Which of the following statements is true about the relationship between genetic variation and natural selection? a. genetic variation must be present in a population before natural selection can act on it. b. genetic variation arises in a population as a result of natural selection. c. natural selection can act on a population whether there is genetic variation within the population or not. d. after natural selection acts on a population, the amount of genetic variation in the population always increases.

What is the role of dna ligase in the elongation of the lagging strand during dna replication?

Afive-year study was carried out on a population of algae in a lake. the study found that the algae population was steadily decreasing in size. over the five-year period this decrease most likely led to