What do the production of wine, beer, yogurt, and sauerkraut all have in common?
A. Microorganisms grow in each of these foods producing acids which are responsible for the flavors.
B. All of these products are made by microbial fermentation of natural sugars in the food starting material.
C. All of these products are the result of yeast acting on natural sugars in the food starting material.
D. All of these choices are correct.
Answer: B
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Before Darwin, ____
a. no one had conceived of biological evolution b. Lamarck wrote about biological evolution, but had the mechanism wrong c. Malthus developed a theory of evolution d. Lamarck proposed the idea of natural selection, but was ignored e. Malthus demonstrated the progression of fossils in sedimentary rocks
Phenotypically wild-type F1 female Drosophila, whose mothers had light eyes (lt) and fathers had straw (stw) bristles, produced the following offspring when crossed to homozygous light-straw males:
Phenotype Number light-straw 22 wild-type 18 light 970 straw 970 Total: 2000 Compute the map distance between the light and straw loci. A) 4 map units B) 8 map units C) 2 map units D) 98 map units E) 12 map units
Recall that eukaryotes consist of remarkably different organisms. For instance, compare a squid living in the ocean and a squirrel in your back yard. These two animals have different limbs, different mouths, and different skins
Why are these two animals so morphologically different? Select all that apply. A. These two animals use very different biochemical pathways for respiration. B. These two animals are specialized for different environments and food sources. C. These two animals use very different biochemical pathways for photosynthesis.
Meiosis is considered a
a. duplicational division. b. multiplication division. c. parallel division. d. reduction division. e. autosome division.