The surface area/volume ratio is an important factor for one celled organisms. this is because is the primary method these cells use for material transport. a) diffusion b) active transport c) transport protein d) the endoplasmic reticulum

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.

Select the word from the list that best fits the definition the temperature to which air must cool to be saturated

Everything that surrounds a particular organism