Which of the following require wearing gloves to protect your skin?
A) microscope
B) water bath
C) chemicals
D) none of the above
C
Explanation:
A) Using a microscope does not require one to wear gloves.
B) Using a water bath does not require one to wear gloves.
D) One of the above answers is the correct answer.
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Humans can survive for a period of time without water thanks to the ability of the kidneys to produce concentrated urine. Briefly explain the factors that allow this to happen.
What will be an ideal response?
Tropic hormones
a. are produced by the posterior pituitary b. are secreted only by the hypothalamus c. primarily regulate hormone secretion by certain other endocrine glands d. all have non-tropic functions too e. are the hormones that stimulate athletes to win trophies
Which of the following form a continuous loop; fluid flows in one direction, but ends where it started, and continues in the same loop?
A. Blood vessels B. Lymphatic vessels C. Both blood vessels and lymphatic vessels
Troponin, a major protein in thin filaments, is a globular protein with three polypeptide subunits. Which of the following is NOT a function of the troponin?
A. One subunit binds to calcium ions. B. One subunit attaches troponin to actin. C. One subunit binds tropomyosin and helps position it on actin. D. One subunit binds to potassium ions.