Which of the following is not a local regulator?
a. histamine
b. prostaglandins
c. nitric oxide
d. growth factors
e. insulin
E
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You extract DNA from an E. coli cell and observe it is hemi-methylated. Which strand of DNA is older?
A. The methylated strand B. The strand that is not methylated C. Neither—they are the same "age."
If you tear your Achilles tendon you are damaging ECM-rich _________ tissue.
A. connective B. nervous C. muscle D. epithelial
Why is it more difficult to obtain sufficient oxygen at higher altitudes? What will be an ideal response?
What did Darwin famously refer to as an "abominable mystery"?
a. the associations between specific types of flowers and specific animal pollinators b. the alternation of generations in plants c. the sudden appearance and immediate diversification of flowering plants in the fossil record d. the development of vascular plants