Nerve impulses involve the flow of an electrical current, a type of energy known as ________ energy
A) radiant
B) mechanical
C) electrical
D) chemical
C
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The study of the functions of the human body is called
a. anatomy c. pathology b. physiology d. histology
Menstruation is initiated by
a. a rapid increase in estrogen levels. b. a rapid drop in estrogen levels. c. a rapid drop in progesterone levels. d. both (a) and (b) above. e. both (b) and (c) above.
Which correctly lists a function of estrogens in females and testosterone in males?
A. They stimulate the secretion of luteinizing hormone (LH). B. They stimulate the secretion of gonadotropin-releasing hormone (GnRH). C. They prevent the pubertal growth spurt. D. They are responsible for epiphyseal plate closure. E. They stimulate the reabsorption of bone.
Are all chemical reactions reversible? If not, why aren't they all reversible?
What will be an ideal response