The component of the gram-negative outer membrane called endotoxin is also known as _______
Fill in the blank(s) with the appropriate word(s).
LPS
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Answer the following statements true (T) or false (F)
1. Phagocytes can only ingest objects that they are able to attach to. 2. The terms “leukemia” and “leukopenia” both refer to an abnormally low number of circulating leukocytes. 3. Ehrlichia spp. are intraleukocytic pathogens. 4. Chemokines are chemotactic agents that are produced by various cells of the human body. 5. Perspiring, swallowing, and urinating are all considered to be part of the first line of defense.
A reason or reasons given by scientists as to why viruses are not considered living organisms include:
a. Viruses do not contain genetic information b. Viruses do not reproduce on their own c. Viruses are all smaller than the smallest known cells d. Viruses do not contain a nucleus e. Viruses can be frozen and still survive
A carrier is a person who
a. carries a recessive gene for a genetic disorder but shows no signs or symptoms. b. shows signs and symptoms of a genetic disorder only under conditions of stress or other illness. c. carries a gene for a genetic disorder and shows signs and symptoms most of the time. d. carries a gene for a genetic disorder and shows signs and symptoms all of the time. e. carries a gene for a genetic disorder and shows a reduced degree of signs and symptoms.
Removing some fluid from directly around a developing human fetus is performed by inserting a long needle into the belly of the female patient. What extraembryonic membrane will be punctured in this process?
A. Amnion B. Chorionic villi C. External epithelium of mother D. Chorion