Which statement about taste cells is false?
A. They secrete a neurotransmitter to stimulate the sensory neuron at their base.
B. They are the bumps that cover the surface of the tongue.
C. They are epithelial cells with sensory neurons at their base.
D. They have taste hairs on their surface.
Answer: B
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The ________ cavity contains tiny bones that transmit sound vibrations to the organ of hearing in the inner ear.
Fill in the blank(s) with the appropriate word(s).
Choose the correct statement about implantation
a. It is accomplished as the trophoblastic cells break down the myometrium tissue b. It occurs during the secretory, or progestational, phase of the menstrual cycle c. It occurs within 24 hours after ovulation d. Both a and b e. All of the above
During the secretory phase, the corpus luteum secretes ____ levels of estrogen and ____ levels of progesterone
a. high, high b. high, low c. low, high d. low, low
The forerunner of modern sex research is:
A. Richard von Krafft-Ebing B. Henry Havelock Ellis C. Magnus Hirschfeld D. Sigmund Freud