I hope since they are multiple choice you can answer 4 questions. Thank you in a
ID: 82925 • Letter: I
Question
I hope since they are multiple choice you can answer 4 questions. Thank you in advance!
17. One of the major sources of evidence for evolution is in the comparative anatomy of organisms. Features that look different but have similar structural origin are called:
a. homologous structures.
b. analogous structures.
c. vestigial structures.
d. equivalent structures.
18. All of the following are sources of genetic variation related to sexual reproduction, EXCEPT:
a. crossing-over
b. production of offspring by two parents
c. independent assortment of homologous chromosomes
d. mutation
e. random fertilization.
19. An athlete who trains at high elevation will produce additional red blood cells in response to the lower concentration of oxygen in the air. Which of the following is true?
a. Her genes for blood cell production will have mutated.
b. She will pass on this trait to her children.
c. The human species will have evolved.
d. This has no effect on the gene pool.
e. Her children, conceived after training, will have a higher than normal number of red blood cells.
21. The many species of Galapagos finches were each adapted to eating different foods. This is an example of:
a. Gene flow
b. Adaptive radiation
c. Sympatric speciation
d. Both a and b are correct
e. a, b, and c are all correct
Explanation / Answer
17 analogous structures
18 mutation
19 her genes for blood cells production have mutated
21 Adaptive radiation