Both Wallace and Darwin traveled extensively and were struck by the strong patterns that they observed in the geographic distribution of nature's diversity. Which of the observations below were made by Wallace?
a. Highly similar species are clustered in time and space.
b. Climate and physical conditions are insufficient to explain the geographic clustering of similar, closely related species.
c. Geographic features seem to play an important role in the clustering of similar, closely related species.
d. Both A and C.
D
You might also like to view...
All cells have DNA to carry genetic information, a plasma membrane which serves as a selective barrier, and
mitochondria for the generation of energy.
Indicate whether the statement is true or false.What is meant by the term genetic code?
What will be an ideal response?
Bacterial decomposition of organic nitrogen results in the production of:
a. ammonia. b. nitrates. c. nitrites. d. atmospheric nitrogen. e. urea.
Which of the following is NOT a recognized form of anthrax?
A) cutaneous B) inhalationial C) septic D) gastrointestinal E) None of the answers are correct; all of these are recognized forms of anthrax.