In the process of inflammation, the immediate and initial vasoconstriction in the precapillary arterioles is the result of neural impulse by the sympathetic system
a. true
b. false
Ans: a. true
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Which of the following statements is (are) true?
a. The anterior pituitary gland is essentially nervous tissue. b. The anterior pituitary gland secretes only two hormones. c. The posterior pituitary gland is the master gland. d. The posterior pituitary gland only stores and releases hormones produced by the hypothalamus. e. All of these are true.
You have determined the base sequence for a gene from Felis catus (domestic cat) that you believe may be involved in feline leukemia. A BLASTn search results in nucleotide sequence matches from viruses, not mammals, although the similarity is low
What other bioinformatic tools or techniques could you use to investigate the function of this gene? Why would these tools or techniques be more convincing than a BLASTn search? Hypothesize why you think this result might be correct or incorrect. What will be an ideal response?
Which statement is NOT true about the life cycle of flowering plants?
(a) The sporophyte is diploid. (b) The sporophyte produces two different types of spores. (c) The female gametophyte is the seed. (d) The male gametophyte is the pollen grain. (e) The female gametophyte is retained within the body of the sporophyte parent generation.
Which of the following streptococcal diseases has a toxigenic type of pathogenesis?
A. Scarlet fever B. Rheumatic fever C. acute glomerulonephritis D. impetigo E. glanders