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.
You might also like to view...
The hormone whose levels remain high when
the body is suffering from inflammation and stress is a. cortisol. b. somatotropin. c. thymosin. d. prolactin. e. parathyroid hormone
The appearance of __________ marks the onset of
gastrulation in humans. a. a notochord b. the primitive streak c. mesoderm d. neural folds e. somites
Damage to the ground meristem of a plant would result in
A. an increase of gas exchange at the surface of the leaf. B. dehydration of the plant. C. inability to move sugar but not water through the plant. D. decreased sugar production. E. the inability to move water but not sugar through the plant.
Bioengineering to create organs for transplants involves
A) growing cells without a scaffold. B) seeding a scaffold of connective tissue matrix with stem cells. C) transplanting unaltered organs. D) using 3D printers to make organs that function without copying structure.