Which is a correct description of hormone action?
A. Testosterone stimulates corpus luteum.
B. LH stimulates Sertoli cells in the testes.
C. GnRH stimulates the anterior pituitary gland.
D. Testosterone regulates LH and FSH in a positive feedback loop.
E. FSH stimulates Leydig cells in the testes.
Answer: C
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Which term describes infections that produce escalating symptoms over a short period of time, until the virus is eliminated from the body by the immune system?
a. asymptomatic infection b. chronic infection c. acute disease d. intermittent disease
Neurotransmitters are released into a small gap between neurons called a synaptic ___________
Fill in the blank(s) with the appropriate word(s)
Entamoeba histolytica is a/an:
A) photosynthetic protist. B) parasitic protist responsible for dysentery. C) protist that moves using flagella. D) aggregating protist that can form a "slug-like" organism.
What is the term for selection that favors altruism toward relatives?
A. kin selection B. mate choice C. group selection D. nepotism E. reciprocal altruism