Which tissue type will move the body?
a. Muscle
b. Nerve
c. All of these choices
d. Epithelial
e. Connective
a
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A chemical reaction that has a positive ?G is correctly described as
A. enthalpic.
B. endothermic.
C. spontaneous
D. exothermic.
E. endergonic.
Archaea have been found in many microenvironments in the human body. Which of the following microenvironments is most likely to fit with the designation of Archaea as "extremophiles?"
A. The inner ear can withstand increased pressure. B. The gingiva and the gut are anaerobic. C. The temperature of the testes is less than 37°C. D. The surface of the tongue has salt receptors.
A tumor in an endocrine gland caused Jane to have weakened bones and unusually high levels of blood calcium. Which gland was affected?
A) parathyroid gland B) pancreas C) bone marrow D) pituitary gland
How would a calcium deficiency affect the process of skeletal muscle contraction?
A) Skeletal muscles would not be able to utilize ATP as a source of fuel. B) The action potential would be blocked from entering the muscle fiber. C) The myosin heads would remain attached to actin molecules. D) Myosin heads would not bind to actin efficiently.