Which type of hormone releases cyclic AMP as a second messenger?

a. peptide only
b. steroid only
c. protein only
d. peptide and protein only
e. peptide, steroid, and protein


ANSWER: d

Biology & Microbiology

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The use of birth control pills (oral contraceptives) _____

A) reduces the incidence of ovulation B) prevents fertilization by keeping the sperm and egg physically separated by a mechanical barrier C) prevents implantation of an embryo D) prevents sperm from exiting the male urethra E) prevents oocytes from entering the uterus

Biology & Microbiology

Drosophila melanogaster has four pairs of chromosomes (including a pair of sex chromosomes). Sperm from this species are formed by a meiotic process in which homologous chromosomes pair and segregate but do not undergo crossing-over. How many genetically different kinds of sperm could be produced by a Drosophila melanogaster male (XY)?

A) 4 B) 8 C) 16 D) 64 E) 256

Biology & Microbiology

Which gland is associated with daily biorhythms?

a. pineal b. parathyroid c. thymus d. pituitary e. thymus

Biology & Microbiology

Which of the following are benefits of cardiorespiratory fitness?

What will be an ideal response?

Biology & Microbiology