This figure shows the spinal cord and spinal nerves. What structure does number 1 indicate?
A. Posterior rootlets
B. Dura mater
C. Cauda equina
D. Conus medullaris
E. Filum terminale
Answer: C
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When mRNA molecules are formed, they are complementary to DNA with the exception that
A. a T in DNA matches an C in mRNA. B. an A in DNA matches a U in mRNA. C. an A in DNA matches a T in mRNA. D. an A in DNA matches a G in mRNA.
Using the figure below, identify the labeled part.
1) Label A: ______________________________
2) Label B: ______________________________
3) Label C: ______________________________
4) Label D: ______________________________
5) Label E: ______________________________
6) Label F: ______________________________
7) Label G: ______________________________
8) Label H: ______________________________
9) Label I: ______________________________
10) Label J: ______________________________
11) Label K: ______________________________
12) Label L: ______________________________
13) Label M: ______________________________
14) Label N: ______________________________
15) Label O: ______________________________
16) Label P: ______________________________
17) Label Q: ______________________________
18) Label R: ______________________________
19) Label S: ______________________________
20) Label T: ______________________________
21) Label U: ______________________________
22) Label V: ______________________________
23) Label W: ______________________________
If the composition of air is 20 percent oxygen with an atmospheric pressure of 700 mm Hg, the partial pressure of oxygen would be
A. 14 mm Hg. B. 20 mm Hg. C. 140 mm Hg. D. 700 mm Hg. E. 1400 mm Hg.
_____ is vital to the function of the red blood cell, helping it transport oxygen to the tissues and some carbon dioxide away from tissues.?
A) ?Hemoglobin B) ?Albumin C) ?Fibrinogen D) ?Globulin