What is the metal ion in chlorophyll?

A. iron
B. magnesium
C. copper
D. zinc
E. sulfur


Answer: B

Biology & Microbiology

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__________ behavior is altered by experience. Fill in the blank(s) with the appropriate word(s)

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Some viruses can carry their genes as ________.

A. DNA B. RNA C. protein D. two of the above E. all of the above

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Describe the case of the child with no leptin

What will be an ideal response?

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In most geological formations, younger rocks are layered over older rocks

Indicate whether the statement is true or false

Biology & Microbiology