A microorganism that causes an infection is called a

A. avirulent infection.
B. colony.
C. commensal.
D. pathogen.


Ans: D. pathogen.

Biology & Microbiology

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If the body recognizes parts of itself as being foreign, this is termed

A. immunodeficiency disease. B. agammaglobulinemia. C. autoimmune disease. D. AIDS.

Biology & Microbiology

The three groups in the primate lineage are

A. gorillas, bonobos, and chimpanzees. B. prosimians, monkeys, and hominoids. C. monkeys, gibbons, and orangutans. D. hominines, hominids, and hominoids. E. chimpanzees, gorillas, and humans.

Biology & Microbiology

During muscle contraction, the ______ of the sacromere becomes narrower.

A. A band B. I band C. M band D. two of the above

Biology & Microbiology

The first hominin species associated with the use of tools was

A) Australopithecus robustus. B) Homo erectus. C) Homo habilis. D) Australopithecus afarensis. E) Homo sapiens.

Biology & Microbiology