Which of these is a direct source of energy for muscle contraction?
(a) ATP.
(b) glycogen.
(c) glucose.
(d) fatty acids.
(a) ATP.
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Which of the following will be observed when the baby boomers begin to receive social security benefits? a. The social security deficit will skyrocket
b. Increasing numbers of older Americans will strain the health care system. c. All of the choices. d. The benefits being distributed to these individuals will exceed what they paid into the system.
The actual sites of recombination during prophase I of meiosis are called kinetochores
1.True 2.False
Between 60% and 80% of genes are NOT regulated, but are
A. constitutive. B. continuous. C. degenerative. D. repressed.
MHC class II cell surface proteins are found on what cells?
A. Erythrocytes only B. Macrophages, B cells, and dendritic cells C. Natural killer cells only D. Neutrophils only E. Neutrophils and natural killer cells