Slow-twitch muscle fibers produce ATP primarily through ________
a. aerobic respiration
b. lactate fermentation
c. alcoholic fermentation
d. all of the choices
a
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In Figure 26.09 (above) the animals across are a lancelet, lamprey, salmon, lizard, and rabbit. If the salmon, lizard, and rabbit are an ingroup, which animals above would be an outgroup and which characteristics are necessary to be in the ingroup?
A. Lamprey and lancelet; notochord and vertebrae.
B. Lamprey only; vertebrae, hinged jaw, tetrapod, and mammary glands.
C. Lancelet and lamprey; hinged jaw, tetrapod, and mammary glands.
D. Lancelet, lamprey and salmon; hinged jaw, tetrapod, and mammary glands.
E. Lizard and rabbit; tetrapod and mammary glands.
In humans, XO individuals are females with Turner syndrome and XXY individuals are males with Klinefelter syndrome. Red-green color blindness is caused by an X-linked recessive allele. Suppose a color-blind man and a woman with normal vision and no family history of color blindness married and had a daughter who was color blind and had Turner syndrome. Which event could have given rise to this offspring?
A) nondisjunction at meiosis I in the mother B) nondisjunction at meiosis II in the mother C) nondisjunction at meiosis I in the father D) nondisjunction at meiosis II in the father E) nondisjunction at either meiosis I or meiosis II in the mother
To improve communication between two neurons, it is necessary in many cases to have a healthy
A. synaptic neuron. B. interneuron. C. sensory neuron. D. motor neuron. E. Schwann cell.
What has identical molecular formulas but different structures and characteristics?
A. enantiomers B. stereoisomers C. isomers D. isomers, sterioisomers, and enantiomers E. isotopes