Organisms that gain energy by consuming preexisting organic molecules are called
A. heterotrophs.
B. autotrophs.
C. animorphs.
D. plants.
E. None of the answers are correct.
A. heterotrophs.
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Restriction endonucleases break ____ bonds
a. phosphodiester b. ester c. glycosidic d. peptide e. hydrogen
What is the likely impact of this toxin on the resting potential of a neuron?
A. The resting potential will require more energy to maintain. B. The resting potential will be more negative. C. It will destroy the ion gradients necessary for the resting potential. D. The resting potential will promote action potentials with a larger depolarization. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content/Choose Answer · What do you already know about sodium and potassium? What other information is related to the question? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Most reabsorption takes place across the walls of
a. papillary ducts. b. loops of Henle. c. proximal tubules. d. distal tubules. e. peritubular capillary.
In the CAMP test the activity of a hemolysis produced by which organism is enhanced in a positive test?
A. Streptococcus pyogenes B. Staphylococcus saprophyticus C. Streptococcus pneumoniae D. Staphyloccus aureus