A University of California psychology graduate student predicted that __________ could have been the reason why many girls in Salem, Massachusetts in 1692 began exhibiting strange symptoms that led to the Salem witch hunt.

A. ergot poisoning
B. lichens
C. truffles
D. a fungal blight


A. ergot poisoning

Biology & Microbiology

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For any two genes located on the same autosome, the frequency of recombination has an upper limit of 50%

A. true B. false

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The world ocean covers ________ of Earth's surface

a. 94% b. 71% c. 46% d. 68%

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Why is olfaction an ancient sense?

a. it was the first sense to develop in humans b. it was used solely to find potential mates c. it was used to detect predators d. it was used to find shelter e. it was the first sense to develop in amphibians

Biology & Microbiology

DNA damage can occur

A) due to exposure to certain chemicals or radiation. B) spontaneously. C) during DNA replication. D) during transcription. E) during DNA replication, spontaneously, or due to exposure to certain chemicals or radiation.

Biology & Microbiology