What do NADH and FADH2 deliver to electron transfer chains?
a. electrons
b. ATP
c. oxygen
d. electrons and hydrogen ions
e. phosphate
d
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The chromosomal abnormality Calvin Bridges observed as a characteristic of "primary exceptionals" is a result of:
A. mutation. B. nondisjunction. C. chiasmata. D. recombination. E. linkage.
Which group of animals would contain species that are parasitic to humans?
1.cnidarians 2.mollusks 3.flatworms 4.
Arrange the following events in the correct sequence
1) thyroid gland secretes less hormone 2) homeostasis 3) high concentration of thyroid hormones 4) anterior pituitary secretes less TSH a. 2 ? 1 ? 4 ? 3 b. 2 ? 3 ? 4 ? 1 c. 3 ? 4 ? 1 ? 2 d. 4 ? 3 ? 1 ? 2 e. 1 ? 4 ? 3 ? 2
What is a "reaction norm?"
A. A character that originally developed in response to the environment that has become genetically determined B. The complete set of interacting genes necessary to produce a developmental module C. The complete range of phenotypes that an organism can produce in different environments D. When the effect of environmental differences on the phenotype differs from one genotype to another in a population E. The ability to produce the same structures and morphology, regardless of environmental differences