How do somatic neurons and autonomic neurons differ? (Check all that apply.)
_____ Somatic neurons innervate the body surface, while autonomic neurons innervate
internal structures.
_____ Somatic neurons control skeletal muscle, while autonomic neurons control smooth
and cardiac muscle.
_____ Somatic neurons control exocrine glands, while autonomic neurons do not.
_____ Somatic neurons control their effectors directly, while autonomic neurons use a series of neurons.
_____ Somatic neurons are always excitatory, while autonomic neurons may be either excitatory or inhibitory.
_____ Somatic neurons innervate the body surface, while autonomic neurons innervate
internal structures.
__X__ Somatic neurons control skeletal muscle, while autonomic neurons control smooth
and cardiac muscle.
_____ Somatic neurons control exocrine glands, while autonomic neurons do not.
__X__ Somatic neurons control their effectors directly, while autonomic neurons use a series of neurons.
__X__ Somatic neurons are always excitatory, while autonomic neurons may be either excitatory or inhibitory.
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The concentration protocol of the ova and parasite (O&P) examination:
a. requires freshly passed, unpreserved stool. b. is designed to allow the detection of pro-tozoan cysts, coccidian oocysts, micro-sporidial spores, and helminth eggs and larvae. c. is microscopically examined at low, high dry, and oil immersion magnifications. d. is designed to facilitate the identification of intestinal protozoa.
Because of its association with tools, the earliest human was called ____________ meaning "handy man."
A. Homo habilis B. Homo erectus C. Homo sapiens D. Neanderthal E. Cro-Magnon
In order for a cell to become cancerous, oncogenes must be , or tumor suppressors are .
A. inactivated; inactivated B. activated; inactivated C. activated; activated D. inactivated; activated E. suppressed; inactivated
Which sentence best describes the role of the signal recognition particle (SRP)?
a. It activates gene expression. b. It assists in polyadenylation of mRNA. c. It assists in mRNA splicing. d. It temporarily blocks translation.