The hepatic portal system
A. begins and ends with capillary beds.
B. transports nutrients from the digestive tract to the liver.
C. allows the liver to detoxify substances entering the body through the digestive tract.
D. has no pumping mechanism between the capillary beds.
E. All of these choice are correct.
E
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Red blood cells are formed by the process of ________.
Fill in the blank(s) with the appropriate word(s).
Define anthrax
What will be an ideal response?
During DNA replication,
A) the DNA double helix comes apart where hydrogen bonds join base pairs, and new nucleotides are brought in, forming two double helices. B) two single strands of DNA come together, restoring complementary base pairing. C) amino acids are joined. D) tRNAs bring specific amino acids to an mRNA molecule.
Baldness
A. occurs only in men. B. is more common in men than in women. C. is not genetic. D. is related to estrogen levels. E. is related to levels of growth hormone.