Along coastlines, the area between high tide and low tide is the

A. hydrothermal vent.
B. continental shelf.
C. intertidal zone.
D. estuary.


Answer: C. intertidal zone.

Biology & Microbiology

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The origin of a new plant species by hybridizing two existing species, coupled with accidents during cell division, is an example of _____

A) allopatric speciation and autopolyploidy B) sympatric speciation and allopolyploidy C) allopatric speciation and allopolyploidy D) sympatric speciation and autopolyploidy

Biology & Microbiology

Which of the following describe a role that ethylene plays in plant physiology. Check all that apply.  

_____  Retarding stem and root elongation. _____  Hastening the ripening of fruit. _____  Inhibition of leaf abscission. _____    Inhibition of lateral bud growth. _____  Accelerates the loss of damaged fruits.

Biology & Microbiology

Which of the following food chains will allow the most energy to be available for human use?

a. corn ? cow ?humans b. corn ?humans c. algae?minnows?fish?humans d. alfalfa?cow?milk?humans e. corn?hen?eggs?humans

Biology & Microbiology

Most of those affected with an autosomal dominant genetic disorder are homozygous for that trait

a. True b. False

Biology & Microbiology