Against which organisms are disinfectants effective? Against which type of organism may not be effective? What disinfectant(s) is used in your laboratory?
What will be an ideal response?
-Disinfectants are effective against vegetative cells but not endospores.
-Staphene is used as a disinfectant in the lab.
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Tritiated hydrogen (3H) differs from hydrogen (1H) in that
A. 3H has 2 more protons than 1H. B. 3H has 2 more electrons than 1H. C. 3H has 2 more neutrons than 1H. D. 3H has the same number of neutrons as 1H. E. 3H has a different electron configuration than 1H.
The digestion of lipids in humans begins in the ____
a. large intestine b. mouth c. pancreas d. small intestine e. stomach
Which of the following occurs during forced expiration?
a. The alveoli inflate. b. The ribs move upward. c. The internal intercostal muscles contract. d. The floor of the thoracic cavity moves downward. e. The pressure increases in the thoracic cavity.
sperm cells get energy to power heir movement from __ contributed by the __
Fill in the blank(s) with the appropriate word(s).