The antimicrobial activity of chlorine is due to which of the following?
A) the formation of hypochlorous acid
B) the formation of hydrochloric acid
C) the formation of ozone
D) the formation of a hypochlorite ion
E) disruption of the plasma membrane
A
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Skeletal muscle contraction begins when calcium ions bind to _____
A) energized cross-bridges B) myosin C) actin D) acetylcholine receptors E) troponin
Differentiate between the various biosafety levels and when they are most appropriately used
What will be an ideal response?
Organisms that live under similar environmental conditions and location, and interact directly or indirectly are part of the same:
a. ecosystem. b. biosystem. c. abiotic habitat. d. biotic habitat. e. population.
Select all of these hormones that are secreted by the anterior pituitary gland.
A. antidiuretic hormone B. oxytocin C. thyroid-stimulating hormone D. insulin E. growth hormone F. adrenocorticotropic hormone