Allergies are considered inappropriate immune system activity
a. true
b. false
Answer: a. true
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What -ism best describes Klemens von Metternich?
How many experiments have been conducted worldwide to test Darwin's initial hypothesis regarding natural selection?
A. one B. 50 C. 100 D. 500 E. thousands
What did the researchers conclude based on the data shown in figure (b)?
A. Harvesting fish randomly led to an increase in average size over time. B. Harvesting larger fish led to an increase in average size over time. C. Harvesting larger fish led to a decrease in average size over time. D. Harvesting fish in a slot limit led to a decrease in average size over time. E. Harvesting fish in a slot limit led to an increase in average size over time.
An individual who has been bitten by a poisonous snake that has a fast-acting toxin would likely benefit from _____
A) vaccination with a weakened form of the toxin B) injection of antibodies to the toxin C) injection of interleukin-1 D) injection of interferon