Please answer these 3 multiple choice questions. Thank you in advance! 14. Witho
ID: 82924 • Letter: P
Question
Please answer these 3 multiple choice questions. Thank you in advance!
14. Without extensive medical intervention (hightech equipment in modern hospitals) it is unusual for human babies weighing under 3 pounds or over 13 pounds to be born alive and survive (along with their mothers). This is an example of?
a. natural selection
b. survival of the fittest
c. genetic drift
d gene flow
e geographic variation
15. Which of the following is most likely to improve the fitness of a population to its environment?
a. genetic drift
b. mutation
c. natural selection
d. gene flow
e none of the above will improve fitness.
16. Which of the following was NOT included in Darwin's theory of Natural Selection?
a. Mendelian genetics
b. potential for overproduction of offspring
c. variability among individuals of a species
d. survival of the fittest
e relatively constant numbers of individuals
Explanation / Answer
Option ‘a’ is correct. Babies under 3 pounds or over 13 pounds can survive if they nurture under medical treatment. Therefore, it is the case of natural selection. Naturally, they cannot survive but under human control, they can.
Option c is correct. Natural selection selects those who can survive in the environment. It selects positive population and hence increases the fitness of population.
Option ‘a’ is correct. Mendelian genetics did not include in his theory. He mentioned about all other four points.