The major factor controlling the onset of puberty in males is
A. the production of testosterone by the testes.
B. a decrease in GnRH levels.
C. the hypothalamus becoming less sensitive to the inhibitory effects of androgens.
D. the ability of the pituitary to secrete FSH and LH.
E. None of the choices are correct.
Answer: C
You might also like to view...
Convergence describes
A) how multiple primary sensory neurons synapse on a single secondary neuron. B) how receptive fields can overlap with one another. C) the reason why receptive fields are so small. D) how one primary sensory receptor neurons synapses with a secondary neuron.
Which of the following hormones primarily affects the reproductive organs?
A) Adrenocorticotropic hormone B) Prolactin-releasing factor C) Follicle-stimulating hormone D) Growth hormone
Who are likely to show the greatest similarity in personality?
a. Elizabeth and Betsy, mother and daughter b. Philip and Paul, fraternal twins c. Larry and Laura, brother and sister d. Vincent Sr. and Vincent Jr., father and son e. Ruth and Ramona, identical twins
This figure shows a superior view of a vertebra. Which number indicates the spinous process?
A. 1 B. 2 C. 3 D. 6 E. 7