Vestigial organs
a. did not have a function when they first developed, but do so today.
b. are similar in many organisms.
c. must have evolved individually in different organisms.
d. are not found in present-day organisms.
e. include the human appendix and wisdom teeth and a snake's hipbones.
E
You might also like to view...
Which of the following does NOT affect pathogen growth?
A) availability of microbial nutrients B) pH C) temperature D) doubling time
You discover a dog suffering from a strange disorder that is due to an autoimmune response against its own cells. Upon further investigation, you find that the cells of various tissues are loosely arranged and do not have characteristic shapes and that the animal is prone to hemorrhage as the result of poor blood clotting. Based on these results, the target of the autoimmune response could be
A) fibronectins. B) laminins. C) extensins. D) pectins. E) desmotubules.
All of the following are responses to sympathetic outflow from the spinal cord except ________
a. respiration rate increases b. increased heart rate c. adrenal glands secrete epinephrine d. increased stomach and intestinal movements
Cushing's syndrome has shown to be a result of:
A) long-term excess of testosterone B) pancreas dysfunction C) long-term excess of glucocorticoids D) pineal dysfunction