Bird wings and insect wings are considered to be examples of:

a. divergent evolution.
b. homoplastic evolution.
c. vestigial structures.
d. convergent evolution.
e. coevolution.


D

Biology & Microbiology

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Using the drawing of mRNA below, choose the letter that best fits the description. Translation is often regulated by sequences in this region. ____

What will be an ideal response?

Biology & Microbiology

Fuchsias have flowers which are brightly

colored, unscented, and have long floral tubes. Fuchsia flowers are most likely pollinated by ___.

a. bees b. butterflies c. hummingbirds d. hummingbirds and butterflies e. bees and butterflies

Biology & Microbiology

Which of the following is NOT an effect of

cortisol?

a. causes liver cells to hydrolyze glucagon b. suppresses the uptake of glucose by body cells c. suppresses the hydrolsis of fats by adipose cells d. causes skeletal muscle cells to degrade proteins e. more than one of these is NOT an effect of cortisol

Biology & Microbiology

What is the most common reason why DNA analyses overturn incorrect criminal convictions?

a) Science has not traditionally been used in the courtroom to convict a suspect. b) The legal system traditionally has convicted anybody who refused to have their DNA sampled. c) DNA evidence is much more reliable an identifier of an individual than eyewitness accounts. d) We've only known for the last five years that DNA is fairly unique to an individual. e) Scientists can study a person's DNA and determine whether or not that person is a criminal.

Biology & Microbiology