Only high-energy light can penetrate the ocean and reach photosynthetic organisms in coral reefs. What color light would you predict these organisms use?
A. Red
B. Yellow
C. Blue
D. Orange
Ans: C. Blue
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Flying has evolved in all but which of the following groups?
A. reptiles B. insects C. mammals D. birds E. amphibians
A mountain rain shadow is the ____
a. arid area on the windward slope b. wet area on the windward slope c. arid area on the leeward slope d. wet area on the leeward slope e. arid area on either slope
CRISPR systems have been used in cancer treatments to
A. deliver radiation to individual cells within large, dense tumors. B. inactivate faulty genes that are responsible for the cell cycle, causing them to slow down or stop cell division. C. activate genes that are responsible for the cell cycle, causing them to speed up cell division to replace cells lost to other cancer treatments. D. deliver packets of chemicals to tumors via genetically engineered red blood cells.
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Figure 36.3
Use the figure above to answer the following question.
A fish circulatory system is indicated by the letter (s) ____.
A. A only B. B only C. C only D. both A and B E. both B and C