A serious and sometimes fatal allergic reaction is
a. anaphylactic shock.
b. toxic shock.
c. septic shock.
d. uremic shock.
e. compensated shock.
A
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The following question(s) relate to the data table below, showing typical fluctuating pH and dissolved oxygen levels in a fish pond with a heavy concentration of algae over a 24-hour period.TimeOxygen (ppm)pH2 a.m.4.57.74 a.m.2.87.26 a.m.2.26.88 a.m.2.56.810 a.m.3.97.2Noon6.57.72 p.m.10.08.34 p.m.12.18.86 p.m.13.19.28 p.m.13.09.210 p.m.12.08.8Midnight10.88.3What is a possible reason for oxygen to be so low by the end of the night?
A. Fish consume oxygen during the night, and oxygen starts to run out by dawn; algae are not linked to the low oxygen. B. Algae produce oxygen as a by-product of photosynthesis during the day, but not at night, so oxygen runs out by the end of the night; in addition, fish continue to consume oxygen during the night, which further reduces the oxygen by the end of the night. C. Algae produce oxygen as a by-product of photosynthesis during the day, and not at night, so oxygen runs out by the end of the night; fish are not linked to the low oxygen. D. Neither fish nor algae or linked to the low oxygen found at the end of the night.
A rare, X-linked dominant condition in humans, congenital generalized hypertrichosis, is marked by excessive hair growth all over a person's body. Which of the following statements about this condition is INCORRECT?
What will be an ideal response?
Which of the following is the best description of an atom's physical structure?
A) An atom is a solid mass of material. B) The particles that form an atom are equidistant from each other. C) Atoms are little bubbles of space with mass concentrated at the center of the bubble. D) Atoms are little bubbles of space with mass concentrated on the outside surface of the bubble.
Refer to the accompanying figure. At what point is there potential to undergo mitosis to become a gametophyte?
a. 2 b. 3 c. 5
d. 6 e. 9