You are hired to work in a laboratory to measure the rate of human muscle contraction. Which of the following might decrease in quantity in muscle cells undergoing contractions?
A. ATP
B. carbon dioxide
C. water
D. lactic acid
E. sodium
A
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Mucus lubricates tissue.
Answer the following statement true (T) or false (F)
Cortical nephrons have their corpuscles near the ________ edge of the cortex and are the ________ common type of nephron.
A. peripheral; less B. deeper; less C. deeper; more D. peripheral; more
Where in the eye is aqueous humor located?
A) in the anterior cavity, between the cornea and the retina B) in the posterior cavity, between the lens and the retina C) in the anterior cavity, between the cornea and the lens D) in the posterior cavity, between the cornea and the lens E) in the anterior cavity, between the ciliary body and the ora serrata
Bile is synthesized and secreted by the:
A. gallbladder. B. gastric mucosa. C. pancreas. D. duodenum. E. liver.