4. Which is NOT included in phytoplankton? (1 Point)
O cyanobacteria
O diatoms
O dinoflagellates
O plants

I’m stuck on this question cuz i’m stupid sksksksk

Why did the federal government end its support of yucca mountain as a site for long-term storage of nuclear water

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.