Which of the following methods would be most appropriate for gathering data to plot a bacterial growth curve throughout the four phases?
a. plate count
b. indirect estimate based on turbidity
c. electronic cell counter
d. Any of these methods will provide reliable data for plotting a growth curve.
e. direct microscopic count
Answer: a. plate count
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The hormone indicated by the small oval on the left in the figure could be which of the following?
A. testosterone B. insulin C. growth hormone D. ADH
Non-enveloped and enveloped viruses both may enter the host via endocytosis
Indicate whether this statement is true or false.
Herbaceous vegetation such as reeds, sedges, grasses, and cattails typically grow in freshwater
A) marshes. B) swamps. C) riparian woodlands. D) peatlands or mires.
How do somatic neurons and autonomic neurons differ? (Check all that apply.)A) Somatic neurons innervate the body surface, while autonomic neurons innervate internal structures.B) Somatic neurons control skeletal muscle, while autonomic neurons control smooth and cardiac muscle.C) Somatic neurons control exocrine glands, while autonomic neurons do not.D) Somatic neurons control their effectors directly, while autonomic neurons use a series of neurons.E) Somatic neurons are always excitatory, while autonomic neurons may be either excitatory or inhibitory.
What will be an ideal response?