The tissue containing nerves, blood, and lymph vessels in teeth is known as the:a
dentin.
b. cementum.
c. enamel.
d. tooth socket.
e. pulp cavity
E
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Which of the following sigma factors is essential for general transcription in exponentially growing cells?
A. ?28 B. ?32 C. ?38 D. ?54 E. ?70
Four of the five answers listed below are
related by gender. Select the EXCEPTION.
a. epididymus b. cervix c. clitoris d. myometrium e. ovary
Body fluids in humans have a high buffering capacity because of
A) the presence of the bicarbonate/carbonic acid buffer system. B) the natural result of water as a solvent. C) hydrogen bonding between water molecules in biological fluids. D) shifts in blood pH that are required to maintain homeostasis.
Precarcinogens are themselves not carcinogens but may be activated to become a carcinogen in the liver by the activity of
A) PTEN. B) Ras. C) EGF. D) Cytochrome P450. E) APC.