All of the following are true about Earth's ozone layer EXCEPT:

A. It shields Earth from most ultraviolet radiation
B. It is composed of O3
C. Its thickness has remained constant over time.
D. CFC molecules can destroy ozone molecules
E. It is predicted that a reduction of this layer will result in an increase in human skin cancer


Ans: C. Its thickness has remained constant over time.

Biology & Microbiology

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Damage to the ground meristem of a plant would result in

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Biology & Microbiology

Bioengineering to create organs for transplants involves

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The appearance of __________ marks the onset of

gastrulation in humans. a. a notochord b. the primitive streak c. mesoderm d. neural folds e. somites

Biology & Microbiology