Each month, the moon starts as a new moon and slowly becomes more visible, appearing larger with time. what is this process called?

How does human environment effect the biosphere

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.

This is one of the five kingdoms in the older biological succession. organisms in this kingdom are prokaryotic.