Which statement is not true of endotoxins?
A) They can lyse amoebocytes found in crab hemolymph.
B) Endotoxins are produced by Neisseria meningitidis and E. coli.
C) They are easily eliminated from the body as a result of antitoxin production.
D) They can induce chills, fever, aches, clotting, shock, and miscarriage.
E) They are more heat-resistant than exotoxins are.
Ans: C) They are easily eliminated from the body as a result of antitoxin production.
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Asexual reproduction in sponges is by binary fission
Indicate whether the statement is true or false
The process of binary fission leads to the production of how many cells?
a. 1 b. 2 c. 3 d.4
In a salt-wedge estuary the relationship between salinity and depth is that salinity:
a. is even from top to bottom. b. increases with depth. c. changes abruptly with depth. d. varies horizontally. e. decreases with depth.
Which of the following would be the most likely consequence of removing the apical meristem from a
plant? a. The plant dies. b. The plant remains alive but will not grow again. c. The growth of axillary buds is inhibited. d. The axillary buds die. e. Some axillary buds grow into branches.