Will upvote and
a scientist has kept records of the color variations in a field of phlox for several generations. phlox is an annual plant that produces flowers in a variety of shades ranging from white to red. initially the field contained equal proportions of white, pink, and red flowers. by the end of the study the proportions of flowers in the field were 80% red, 15% pink, and 5% white. which of the following inferences best explains the change in flower color proportions?
a. bees visiting the field are more likely to see the white flowers and gather pollen from them.
b. the red flowers produce fewer seeds than the white flowers.
c. a predator has been introduced that prefers to eat red flowers.
d. some environmental change has happened that favors the red flowers.
explain !

D. Some environmental change has happened that favors the red flowers.

Explanation:

According to the given information, the original Phlox population had equal proportions of white, pink, and red flowers. During the study time, some changes in environmental conditions led to increase in survival and reproductive fitness of red flowers over the other two colors of the flower. Natural selection favored the red flowers which in turn led to their increase in the population.

answer; ///i believe the correct answer is (aids) acquired immune deficiency syndrome;

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.