Nearly all of the oceans’ primary productivity occurs in the _____ zone

a. littoral
b. photic
c. pelagic
d. benthic


Answer: B

Environmental & Atmospheric Sciences

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Discuss how road building can lead to multiple levels of forest degradation.

What will be an ideal response?

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Conical marine organisms that lived during the Cambrian and were the earliest builders of reef-like structures are

known as ____. a. protists b. cyanobacteria c. brachiopods d. sponges (porifera) e. archaeocyathids

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What is the origin of most abyssal plain sediments?

a. Deep-ocean basalt b. Biological activity c. New crust development d. Erosion from the continent

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From the perspective of the strands being synthesized, which of the following is true?

A) They are both synthesized in the 3' ? 5' direction. B) They are both synthesized in the 5' ? 3' direction. C) The leading strand is synthesized in the 3' ? 5' direction and the lagging strand is synthesized in the 5' ? 3' direction. D) The leading strand is synthesized in the 5' ? 3' direction and the lagging strand is seemingly synthesized in the 3' ? 5' direction.

Environmental & Atmospheric Sciences