The friction ridges seen in finger, palm and foot prints are different among various people but very similar between identical twins. This evidence suggests which of the following?
A) That friction ridges change over time.
B) That friction ridges aid in griping.
C) That friction ridges allow for better tactile sensation.
D) That friction ridges are genetically determined.
D
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Which of the following hormones promotes the breakdown of fatty acids?
A. Thyrotropins B. Gonadotropins C. Somatotropins D. Lipotropins
Suppose you cup your hands to hold some water. To limit the amount of leaking through your hands, this action would most likely require ________.
A. abduction of the fingers B. pronation of the forearm C. adduction of the fingers D. circumduction of the wrists E. opposition of the thumb
The ____________________ of a spermatozoon contains the sperm's genetic information; the ____________________ is an enzyme-filled vesicle for penetrating an ovum; power-generating mitochondria are concentrated in the sperm's ____________________; the ____________________ is a whip-like structure comprised of microtubules
Fill in the blank(s) with correct word
Hypocalcemia enhances the excitability of nerves and muscles because of the ________ permeability of the cell membrane to ________.
A. increased; K+ B. decreased; K+ C. decreased; Na+ D. increased; Na+