The tissue type that provides communication among cells is called
A. epithelial.
B. connective.
C. nervous.
D. muscle.
E. All of the answer choices are correct.
C. nervous.
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An example of a pathogen that undergoes rapid changes resulting in antigenic variation is _____
A) the influenza virus, which expresses alternative envelope proteins B) the strep bacteria, which can be transmitted from patient to patient with high efficiency C) human papilloma virus, which can remain latent for several years D) the causative agent of the autoimmune disease known as rheumatoid arthritis E) multiple sclerosis, which attacks the myelinated cells of the nervous system
Which of the following is/are true about monoclonal antibodies?
A. They recognize a specific epitope B. They are a useful tool in disease diagnosis C. They are made by hybridizing a myeloma cell and an activated B cell D. All of the choices are correct.
A mutation from the most prevalent form of a gene to a mutant form is called a ________ mutation.
A. reverse B. forward C. escalating D. wild card
The motor division of the PNS carries information away from the CNS.
a. true b. false