Which of the following is NOT a primary odor class?
A. umami
B. floral
C. putrid
D. pepperminty
E. ethereal
A
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During breastfeeding, as the baby suckles, nerve signals are relayed from the mother's nipple to the mother's brain. The brain initiates the mother's pituitary gland to produce more prolactin (a hormone), which causes more milk to be ejected. This process of breastfeeding is an example of
A. positive feedback. B. feedforward regulation. C. negative feedback. D. acclimatization. E. adaptation.
The atomic number is equal to the number of ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following is considered a primary lymphoid organ?
A) appendix B) thymus C) tonsils D) spleen
Irregular heartbeats (arrhythmias) have been known to be related to abnormal levels of which ion?
A. Chloride B. Peroxide C. Bicarbonate D. Potassium