Which of the following is an example of natural selection? A. A population of monkeys exhibit shorter hair after several generations due to increased temperatures.

B. A scientist studies a DNA sequence of a gene.

C. A bacteria splits into two identical cells.

D. A farmer mates two large hogs in order to produce more meat.

Which of the following is a main difference in cell structure between an onion cell and a human cheek cell? a. an onion cell contains one nucleus, whereas a human cheek cell contains two nuclei. b. an onion cell has a cell wall. c. a human cheek cell contains chloroplasts. d. there is no difference between an onion cell and a human cheek cell. you for your.

What do scientists need to look at before developing an argument

Monitor and apply fix up strategies