All of the following occur at puberty except
A) FSH levels rise.
B) GnRH levels decline.
C) levels of sex hormones rise.
D) skeletal muscle fibers are stimulated.
E) secondary sexual characteristics begin to develop.
Answer: B
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Answer the following statements true (T) or false (F)
1. Sexually transmitted infections are the most important cause of reproductive disorders. 2. The smaller cell produced by oogenesis meiosis I, called the first polar body, is essentially a packet of discarded nuclear material. 3. A human egg or sperm contains 23 pairs of chromosomes. 4. The Pap smear is a test to detect cancerous changes in cells of the cervix. 5. The adenohypophyseal hormone that triggers ovulation is estrogen.
If a toxic drug inhibited mRNA synthesis, which of the following would be most directly affected?
A. Protein synthesis B. Microtubule production C. Secretion of glycoproteins and lipoproteins D. Active transport E. Intracellular digestion
Which of the following membranous structures is closest to the fetus?
A. The placental sinus B. The smooth chorion C. The villous chorion D. The placenta E. The amnion
What is the role played by adipokinetic hormone in the regulation of insect flight?
What will be an ideal response?