Identify the chemical formula missing from the following equation.Yeast + ________ ? 2C2H5OH + 2CO2
A. O2
B. H2O
C. C6H12O6
D. CH3CHO
E. C5H12O5
Answer: C
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What is an ecotone?
a. a parasite that is external to the body b. a parasite that is internal to the body c. an example of an individualistic hypothesis d. a zone between two communities
e. the combination of species in an environment that is constantIf blood calcium ion concentration declines, ____ is released
a. thyroid hormone b. insulin c. glucagon d. parathyroid hormone e. calcitonin
If a child more strongly resembles one parent's physical traits than the other parent's, the explanation could be due to chromosome movements during ________________.
A. anaphase II B. metaphase II C. prophase II D. prophase I E. telophase I
People homozygous for the sickle-cell anemia allele develop a life-threatening disease, while those homozygous for the normal allele are at the highest risk of dying from malaria. Carriers have some resistance to malaria but do not develop sickle cell anemia. This is an example of
A. genetic bottleneck. B. heterozygote advantage. C. point mutation. D. heterozygosity. E. founder effect.