The number of chromosome pairs in a species:
a) is always 23.
b) is greatest among insects.
c) is always greater than three.
d) increases with intelligence.
e) None of the above are true.
Ans: e) None of the above are true.
You might also like to view...
One important difference between the C, N, and S cycles and the P, Ca, and Si cycles is that
A) P, Ca, and Si are NOT cycled in terrestrial environments. B) the P, Ca, and Si cycles do NOT involve redox changes or gaseous forms that can alter Earth's atmospheric chemistry. C) the P, Ca, and Si cycles do NOT involve microbial activity. D) the P, Ca, and Si cycles are NOT affected by global warming or other human activity.
Which one of the following sequences is CORRECT in terms of level of organization from least to most complex?
A) cells, tissues, organs, organ systems, organism B) atoms, cells, organs, community, population C) atoms, cells, organism, organ systems, ecosystem D) tissues, organ systems, population, cells, organism
An organ that secretes both digestive enzymes into the small intestine and hormones into the blood is the _______.
A. liver B. appendix C. small intestine D. pancreas E. gall bladder
The following are steps used to construct a cladogram that best reflects the evolutionary relationships of a group of species. Which step involves deciding which tree is most likely to have occurred, based on the fewest character state changes?
A. Select an outgroup B. Polarize the characters C. Establish the character states D. Gather data on characters to be used E. Apply the principle of parsimony