. How many nucleotide bases compose one
“genetic word”?
a. 1
b. 2
c. 3
d. 4
e. 5
C
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Which of the following statements correctly traces the route of water through a sponge?
A. enters through the osculum into the spongocoel and exits via the ostia B. enters through the spongocoel into the osculum and exits via the ostia C. enters through the ostia into the osculum and exits via the spongocoel D. enters through the ostia into the spongocoel and exits via the osculum E. enters through the osculum into the ostia and exits via the spongocoel
Which of the following stimulates the gallbladder to
contract? a. ghrelin b. cholecystokinin c. gastric inhibitory peptide (GIP) d. gastrin e. secretin
Testosterone is made in the testes, where it stimulates sperm development. Additionally, testosterone is carried in the blood throughout the body, stimulating the growth of facial hair and muscles. Therefore, testosterone is
A) an endocrine hormone. B) both a local and an endocrine hormone. C) a local hormone. D) both a neurotransmitter and an endocrine hormone. E) a neurotransmitter.
What is the function of histone methylation? What is its connection to DNA methylation?
What will be an ideal response?