Besides Darwin, the theory of evolution by means of natural selection was also independently proposed by:

A. Charles Lyell.
B. Karl Popper.
C. Thomas Malthus.
D. Peter Raven.
E. Alfred Wallace.


E. Alfred Wallace.

Biology & Microbiology

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Each of the following is classified as a genetic

disorder except _________, which is an abnormality. a. cystic fibrosis b. webbed toes c. hemophilia d. Down syndrome e. XYY

Biology & Microbiology

The letter “A” in the above figure represents

a. nerve cords. b. ganglion. c. brain. d. branching nerves. e. none of these.

Biology & Microbiology

Which of the following is an example of macroevolution?

A. the origin of horses and donkeys from a common ancestor B. giraffes with longer necks reaching higher tree branches C. antibiotic resistance in S. aureus D. female cardinals preferring males with bright red feathers E. the beaks of cactus finches changing in size in response to a drought on the Galapagos islands

Biology & Microbiology

What is a tumor marker/therapeutic target?

a. Related to genetics b. chemicals or proteins found in the blood c. signs of infection d. external growths

Biology & Microbiology