The phylogenetic species concept (PSC) declares that a group is a species if it
A. looks different than other species.
B. is allopatric.
C. is reproductively isolated from other species.
D. has no synapomorphies.
E. has evolved one or more of its own derived characters.
Answer: E
You might also like to view...
Archaea and bacteria diverged:
a. before archaea and eukarya diverged. b. after archaea and eukarya diverged. c. when archaea and eukarya diverged. d. after bacteria and eukarya diverged. e. before bacteria and eukarya diverged.
Assigning economic value to individual species raises awareness of the need to conserve biodiversity. Often, however, the assignment of economic value fails to address the issue of conserving biodiversity in a general sense. Why?
A) Assigning economic values to species is difficult in general. B) We know nothing of the economic value of many potentially valuable species. C) Assigning values to species of necessity favors some species over others. D) All of the above are correct.
Pavlov's well-known experiment of a dog salivating at the sound of a bell ring is an example of
A. operant conditioning. B. classical conditioning. C. insight learning. D. imprinting.
A 0.1 ml sample of a log phase culture contains 10,000 bacterial cells/ml. It is added to 9.9 ml of fresh culture medium broth. Assume a generation time of 30 minutes, and no limiting nutrients. How many bacteria will be present in the entire broth culture after five hours?
A) 3.2 × 104 B) 5.0 × 105 C) 1.02 × 106 D) 6.0 × 106 E) 2.56 × 107