In modern times beer and wine are considered recreational beverages. In the past they were important staples in the human diet, so much so that their consumption is often remarked upon in historical documents. Why were they so important?
What will be an ideal response?
Naturally occurring water that is safe to drink is relatively rare. The microbial activity of fermentation inhibits the growth of potentially harmful microbes. Therefore, wine and beer were much safer to drink than water.
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Match the type of microscopy with the appropriate characteristic.
A) uses a laser to view a single plane of a specimen B) detects electrons passing through a specimen C) light passes directly through specimen D) detects electrons deflected from the surface of the specimen E) shows specific molecules F) amplifies variations in density 1) Brightfield 2) Fluorescence 3) Phase-contrast 4) Confocal 5) Transmission electron microscopy 6) Scanning electron microscopy
Illustrate how the five basic human eye colors can be explained by a model using two genes (A and B), each of which has two alleles (A and a, B and b)
What will be an ideal response?
A hypothesized "first woman" (Eve) probably lived about ________ years ago.
A) 2,000 B) 20,000 C) 200,000 D) 2,000,000
For the following questions, choose the letter from the list below that best matches the description (please note the answer should be a single upper case letter):A. DesertB. SavannaC. TaigaD. Temperate grasslandE. Tropical rain forestVery high solar energy input; temperature and moisture not limiting; high biomass, high total productivity; many species.
Fill in the blank(s) with the appropriate word(s).