Reef-building corals do not typically reside at depths greater than 20 meters. Why?
a. The oxygen levels are too low to support.
b. There is no available calcium carbonate to build their exoskeletons.
c. There is insufficient light to support their dinoflagellate symbionts.
d. There are no protists at those depths.
c. There is insufficient light to support their dinoflagellate symbionts.
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Answer the following statement true (T) or false (F)
Compare and contrast the ways in which animal, plant, and bacterial viruses gain entry into their host cells.
What will be an ideal response?
Which of the following statements about rhinoviruses is FALSE?
A. They are limited to infecting the upper respiratory tract. B. They are the only viruses that can cause a common cold. C. They are extremely infectious. D. They thrive at 33°C. E. Person-to-person contact is the most common mode of transmission.
Contrast negative (repressor) and positive (CAP) control in the lac operon
What will be an ideal response?