Although Our Current Understanding of Why Coral Bleaching Occurs Is

question 25

Multiple Choice

Although our current understanding of why coral bleaching occurs is incomplete,which of the following is consistent with the most commonly held hypothesis of this phenomenon as discussed in your text?

• A)As the number of planktonic,photosynthetic organisms available decreases due to increased predation,fewer symbionts are available for the corals to associate with.
• B)As the number of pollutants dumped into the world's oceans increases,more and more corals will use symbionts that are not photosynthetic.
• C)As global temperatures continue to rise,corals will expel more of their colorful,photosynthetic symbionts.
• D)As pollutants and global temperatures continue to rise,corals will have more difficulty manufacturing the photosynthetic pigments they need to produce their own food.

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Definitions:

Cube Root

The cube root of a number is a value that, when multiplied by itself three times, gives the original number.

Rationalize Denominator

The process of eliminating a radical from the denominator of a fraction by multiplying both the numerator and the denominator by an appropriate quantity.

Rationalize Denominator

The process of eliminating a root from the denominator of a fraction.

Radical Expression

A radical expression is an expression that includes a root symbol, indicating the root of a number or an expression needs to be taken.