Alcohols
A. at 50% or higher concentrations dissolve cell membrane lipids.
B. denature proteins when in a 50-95% solution.
C. are skin degerming agents.
D. are used to disinfect items by soaking.
E. All of these choices are correct.
Answer: E
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Honeybee workers spend their first few weeks as young adults tending the colony's brood, then later shift jobs to foraging for food outside the colony
When researchers fed the young bees candy spiked with the molecule ethyl oleate, the young bees continued to babysit and delayed the job shift to foraging. What would it require to demonstrate that ethyl oleate normally acts as a pheromone, not as an endocrine or paracrine signal? A. It would require demonstration that ethyl oleate binds to a receptor and initiates a series of responses. B. It would require demonstration that ethyl oleate is released by another individual of the same species. C. It would require demonstration that ethyl oleate is released by a predator and causes a behavioral change in the prey.
The G protein that activates adenylyl cyclase is a
a. monomeric G protein in the Ras family that binds GTP. b. dimeric G protein that separates into ? and ? subunits. c. heterotrimeric G protein that separates into ? and ?? subunits. d. heterotrimeric G protein that separates into ?? and? subunits.
Most of the carbon dioxide produced by the body is transported to the lungs ____.
A. in gaseous form B. in the lymph system C. as carbaminohemoglobin D. in the form of bicarbonate E. as carbonic acid
Suppose you collect a series of texts from CEOs' public speaking engagements and wish to perform analysis on them. The collection of texts you've gathered is an example of what type of data?
A. Structured data B. Censored data C. Unstructured data D. Incomplete data