What name is given to the region where sea meets land?

A) pelagic realm
B) intertidal zone
C) benthic realm
D) aphotic zone


B

Biology & Microbiology

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If a double stranded piece of DNA is amplified by PCR then after 4 cycles there would be _____ copies of this DNA

1.2 2.4 3.8 4.16 5.32

Biology & Microbiology

The same molecule may be both __________ and

__________. a. enzyme; neurotransmitter b. neurotransmitter; hormone c. enzyme; pheromone d. hormone; second messenger e. hormone; local signaling molecule

Biology & Microbiology

In the PCR technique, what bonds are broken when DNA is heated?

A. Hydrogen D. Hydrogen and covalent B. Covalent E. Hydrogen, covalent, and ionic C. Ionic

Biology & Microbiology

Torsion may be an adaptation in __________ that allows the __________ to be withdrawn first into

the shell. A. bivalves; foot B. bivalves; head C. gastropods; foot D. gastropods; head E. cephalopods; head

Biology & Microbiology