The type of cell responsible for the production of red and white blood cells in bone marrow is the
A) osteon.
B) osteocyte.
C) osteoclast.
D) stem cell.
E) canaliculi.
D
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Which joints are likely to be affected by
osteoarthritis? a. fingers b. knees c. hips d. backbone e. all of these
The term _________ refers to the alternating surges of pressure in an artery that occur with each contraction and relaxation of the left ventricle.
a. diastole b. murmur c. pulse d. systole
What is the definition of osmosis?
A) The movement of molecules down their concentration gradient B) The movement of salt molecules across a semipermeable membrane C) The diffusion of water molecules across a semipermeable membrane D) The movement of molecules against their concentration gradient
Answer the following questions true (T) or false (F)
1. The CRISPR-Cas9 gene editing system so far can only be used to alter prokaryotic cells. 2. Vaccines are only necessary for infants and children. 3. The more closely a vaccination agent resembles the actual infectious agent, the more likely a strong adaptive immune response will be elicited.