Which of the following adversely affects the ozone layer?
A. oil
B. plastics
C. coal and natural gas
D. greenhouse gases
E. chlorofluorocarbons
Answer: E
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The specialized structure that stores pigments, water, inorganic ions and maintains turgor pressure is the
A. Golgi apparatus. B. vacuole. C. peroxisomes. D. vesicles. E. lysosomes.
The cell shown here is most likely _____
1.finished with metaphase and transitioning to anaphase
2.preparing to duplicate its chromosomes
3.getting ready to align its chromosomes between the spindle poles in metaphase
4.preparing to decondense its chromosomes at the spindle poles
Suppose a phage infected a protease-deficient bacterial cell. Would the lytic or lysogenic life cycle be favored? Why?
What will be an ideal response?
Free radicals have been linked to heart disease, cancer, and acceleration of the aging process.
a. true b. false