During the citric acid cycle:
A. fuel molecules are completely reduced.
B. ATP is synthesized by substrate level
phosphorylation.
C. high-energy electrons are removed from
NAD+ and FADH.
D. ATP is synthesized by oxidative
phosphorylation.
B
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Explain the genetic evidence for the evolutionary changes that caused the loss of forelimbs in snakes
What will be an ideal response?
During the cardiac cycle, when a heart chamber is relaxed, it is in ____________________ and when it is contracting, it is in ____________________
Fill in the blank(s) with correct word
Bone loss outpaces bone formation when a person suffers from ____
a. osteoporosis b. Parkinson's disease c. muscular dystrophy d. Alzheimer's disease e. bone spurs
Eukaryotic cells are believed to have arisen
A) from a symbiotic relationship between primitive nucleated cells and bacterial cells. B) from the fusion of multiple archaeal cells into a larger, more complex cell. C) independently from prokaryotic cells. D) by mutations that lead to changes in plasma membranes, leading to internal membrane-bound organelles. E) independently from prokaryotic cells by mutations that lead to changes in plasma membranes, leading to internal membrane-bound organelles.