When the body has been exposed to exotoxins

A. It will respond with toxoids
B. It will produce antitoxins
C. It will develop endotoxin shock
D. It will produce hydrolytic enzymes like hemolysins or phospholipases
E. It will lose the ability to respond to sensations


Answer: B. It will produce antitoxins

Biology & Microbiology

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Fertilization of a human egg takes place in the _____

A) ovary B) oviduct C) cervix D) vagina E) uterus

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A spontaneous process always happens very quickly.

Indicate whether the statement is true or false.

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The fossil Sahelanthropus tchadensis from the Djurab Desert of Chad, dated at 6 to 7 million years ago, may be a hominin (i.e., share more recent common ancestry with humans than with any other ape because of ________

A) its relatively large brain B) the shape of its thighbones C) its sophisticated use of stone tools D) fossil footprints showing bipedal locomotion E) its relatively flat face

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When nondisjunction occurs early in embryogenesis rather than gametogenesis, what would you expect in the resulting karyotype?

A) monosomy B) trisomy C) mosaicism D) uniparental disomy E) random X-inactivation

Biology & Microbiology