The release of acetylcholine into the neuromuscular junction is shortly followed by the release of ________ ions from the sarcoplasmic reticulum
Fill in the blank(s) with correct word
calcium
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Parental support of offspring is an example of
a. artificial selection. b. kin selection. c. natural selection. d. negative selection. e. stabilizing selection.
In distinctive ways, new philanthropists either themselves or through their companies, apply the business methods that made them rich to the field of philanthropy, blurring the line between charity and business, seeking to harness market forces. This new philanthropy is often called:
A) checkbook philanthropy. B) high impact philanthropy. C) philanthrocapitalism. D) microphilanthropy.
Why is snail fever a common name for infections with Schistosoma?
A) The worms look like snails. B) They are contracted by eating snails. C) Snails are the intermediate host. D) Physical contact with snails may result in infection. E) The larval stage looks like a snail.
Three scientists are using different forms of PCR for their research. Abby wants to determine changes in gene expression levels in a tissue, so she uses ________. Bob is trying to extract genetic information from a wooly mammoth fossil, so he uses ________. Chris needs to express a gene in bacteria that matches the form expressed in kidney cells, so she uses ________.
A. quantitative RT-PCR; PCR; RT-PCR B. RT-PCR; quantitative RT-PCR; PCR C. RT-PCR; PCR; quantitative RT-PCR D. quantitative RT-PCR; RT-PCR; PCR E. PCR; quantitative RT-PCR; RT-PCR