Occasionally three polar bodies are found clinging to the mature ovum. One came from an unequal division of the ovum, but from where did the other two arise?
A) One is an undeveloped primary oocyte that failed to mature.
B) There were originally four polar bodies and one disappeared.
C) What you really see are two polar bodies and the sperm that will fertilize the egg.
D) The first polar body has also divided to produce two polar bodies.
D
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The number of pairs of ribs articulating with the manubrium is
A. 0. B. 1. C. 1.5. D. 2. E. 2.5.
Peptide hormones (chains of 50 or fewer amino acids) are first synthesized as
A) The hormone itself. B) Prehormones. C) Prohormones. D) Preprohormones.
The ________ is a synergist of the latissimus dorsi; it extends, medially rotates, and adducts the humerus.
Fill in the blank(s) with the appropriate word(s).
The ________________________________________ gland produces thyroxine
Fill in the blank(s) with correct word