How does reducing gene flow cause speciation? A. it increases fossilization
B. it creates patches of favorable habit
C. it increases gene flow
D. it allows populations to become genetically different

What would be the result if crossing over did not happen during meiosis in humans? a. there would be less genetic variation in humans. b. parents would be more likely to look like their children. c. the human population could not reproduce. d. children would have more chromosomes.

You see a white marker with an orange circle and black lettering. what does this marker tell you

Which of the following is not a type of epithelial cell