The contraceptive patch prevents pregnancy by killing sperm
Indicate whether the statement is true or false
FALSE
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In the diagram of a root tip shown above, the item labeled "5" is the
a. quiescent center. b. zone of cell division. c. zone of elongation. d. root cap. e. zone of maturation.
Which term refers to a young moss gametophyte?
a. antheridium b. capsule c. protonema d. prothallus
Taking this exam might have caused your adrenal cortex to produce cortisol, the most common glucocorticoid. Cortisol is usually produced in response to
A) a drop in blood pressure. B) the release of adrenaline. C) increased brain activity. D) stress or anxiety. E) inactivity.
Algae that are important sources of thickening agents like agar are known as
A. Rhodophyta. B. Phaeophyta. C. Chrysophyta. D. Rhizobium. E. Chlorophyta.