Which of the following is true of penguins?

A. They live in the polar regions of the Northern and Southern hemispheres.
B. They can be found as far north as the Equator.
C. They are ectotherms.
D. They time their reproduction so that eggs hatch during the winter.
E. They are able to fly when disturbed.

A. They live in the polar regions of the Northern and Southern Hemispheres.

i think that d. wind is the answer.   i missed the question when i answered a. currents.

not necessarily. higher fitness requires the organism to be reproductive successful. for example, an organism at age 10 with 15 offspring is much more fit than an organism at age 15 with only 5 offspring.