Which of the following statements regarding ricin is correct?
A) Ricin is five times more lethal than botulinum.
B) Ricin is highly communicable only if it is inhaled.
C) Calcium chloride is the preferred antidote for ricin.
D) Ricin is extremely toxic by many routes of exposure.
Answer: D) Ricin is extremely toxic by many routes of exposure.
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What factor is believed to be a contributing factor to the decline of insect populations? a. Development of natural areas
b. Use of pesticides. c. Spread of newly introduced diseases. d. All of these choices. e. Insect populations are not declining.
Hemophilia was a significant issue in the life of
A. Abraham Lincoln. B. Olympic volleyball star Flo Hyman. C. Noah. D. the family of the last tsar of Russia. E. King George III of England.
The position occupied by a gene on the chromosome is called the locus
Indicate whether the statement is true or false
Which process occurs during photosynthesis?
A) The light reactions produce NADP from sunlight energy. B) Carbon dioxide reacts with 5-carbon molecules during the Calvin cycle. C) ATP is released at the end of the Calvin cycle. D) Water captures the electrons released from excited chlorophyll pigments.