The range of human hearing is about
A. 2-2,000 vibrations per second.
B. 20-20,000 vibrations per second.
C. 2,000-200,000 vibrations per second.
D. 2,000-3,000 vibrations per second.
Answer: B
You might also like to view...
Define systole and diastole. Which heart chambers are usually referenced when these terms are used?
What will be an ideal response
If neuron Y's neurotransmitter is causing neuron X's membrane potential to decrease, then we would logically conclude that this neurotransmitter causes
a. increased PNa+ and PK+ b. increased PK+ or PCl- c. increased permeability to protein anions d. increased permeability to calcium ions e. None of the above
The site where fertilization normally occurs is in the
A) cervix. B) fimbrae. C) uterine wall near the fundus. D) outer one-third of the uterine tube. E) union of the vagina and uterus.
Cytotoxic T-lymphocytes destroy infected cells by releasing
A. antibodies. B. bradykinin and histamine. C. perforin and granzymes. D. CD4+.