Give a brief description of prions, viruses, and bacteria
What will be an ideal response?
Answer: Prions are infectious agents composed of only proteins. All known prion diseases affect the structure of the brain or other neural tissue. Viruses are infectious particles with a core of genetic material (either RNA or DNA) wrapped in a protein coat called a capsid. Viruses are not considered living organisms because they do not independently grow, metabolize, or reproduce. Bacteria are single-celled organisms with no nucleus or membranous organelles. There are many different forms of bacteria, such as bacilli, spirilla, spirochetes, or vibrios.
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The suffix -er means:
a. specialist b. one who c. study of d. physician
Hamstrings is a collective name for the four muscles on the anterior and lateral aspects of the upper leg
Indicate whether the statement is true or false
Which direction is the opposite of posterior?
A) ?anterior B) ?dorsal C) ?distal D) ?ventral
Limited research suggests that acupuncture may be effective in treating
A) obesity. B) anxiety disorders. C) back and neck pain. D) breast cancer.