Steroid hormones are derived from ____
a. glucose
b. cholesterol
c. messenger RNA
d. cyclic AMP
e. glycogenANSWER: b
ANSWER: b
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Explain how similarity in amino acid sequences among species indicates shared ancestry
What will be an ideal response?
While on a field trip near the ocean coastline, you visit a company that harvests jellylike substance from protists. This substance can be used as food, or in biology lab dishes for culturing organisms that have red-blue pigments, and store starch like plants. The company extracts the substance from multicellular plant-like organisms. You are observing the economic values of
A. algin. B. gelatin. C. carrageenan. D. red ooze. E. agar.
Which blood type is the universal recipient?
a. A b. B+ c. AB+ d. AB e. O+
Which crops are perennial plants?
A) rice B) wheat C) white potatoes D) sweet potatoes