Which of the following is the best example of a response to external stimuli?
a. pupils of the eyes dilate in the dark.
b. a flu virus infection results in vomiting.
c. when a person is hungry, his/her stomach growls.
d. a fatigued person responds by sleeping.

In this experiment you were asked to present three possible mechanisms. describe those mechanisms here and include drawings of those mechanisms. how will the bromination of trans-cinnamic acid and trans-stilbene allow you to distinguish between the three possibilities? what would you expect to find in your data in each scenario?

What are genotypes? what are phenotypes?

Which organelles are labeled d, and what is one feature that distinguishes them from the other labeled organelles chloroplasts the only organelles that produce sugars from sunlight mosomes, only found in animal and bacterial cells centricles only found in animal cells mitochondra, the only energo-generating structures found in cells