In the figure of a sagittal section of a fingernail shown below, where is the nail root?
a) A
b) C
c) E
d) F
e) G
Answer: a
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The term "canines" describes the teeth that
A. bear dental cusps for cutting and grinding. B. are only found in dogs. C. are most anterior, used for slicing and cutting. D. are lateral to the incisors, used for puncturing and tearing. E. are only found as permanent teeth.
Infants born prematurely frequently develop respiratory distress syndrome of the newborn because they have too few alveoli to exchange O2 and CO2 efficiently.
Answer the following statement true (T) or false (F)
Nervous tissue consists of two general types of cells: nerve cells and glial cells. Glial cells are mitotic, whereas neural cells are not (excluding the small population of stem cells). Which type of cell is most likely to be involved in brain cancer, and why?
What will be an ideal response?
A substance does not move down a concentration gradient through
a. a symporter b. an antiporter c. a primary active transporter d. a secondary active transporter e. facilitated diffusion carrier