An element with more or fewer neutrons than the same element as it appears on the periodic table is known as which of the following?

A) isomer B) ion C) buffer D) isotope


Answer: D

Biology & Microbiology

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The most common etiologic agent of community-acquired pneumonia in adults older than 30 years of age is ___ pneumoniae

a. Mycoplasma b. Chlamydophila c. Streptococcus d. Klebsiella

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Which of the following is a hominin?

a. chimpanzee b. Australopithecus c. baboon d. chimpanzee and Australopithecus e. chimpanzee, Australopithecus, and baboon

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One of the most common brain injuries is

a. epilepsy. b. encephalitis. c. meningitis. d. concussion. e. Alzheimer's disease.

Biology & Microbiology

The connective tissue with a matrix of calcium salts and some collagen fibers is _____.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology