Which one of the following descriptions of the term is incorrect?

A pathogen is an agent that is

Which of the following have greatly reduced the incidence of bacterial diseases?

________–in atoms, the central core containing protons and neutrons; in eukaryotic cells, the membrane-bound organelle that house the DNA

Many bacteria are _____ and must have oxygen to live, whereas other bacteria are _____ and cannot live where oxygen is present.

_________–the structure of DNA; two complementary strands coil around a common helical axis

___________-in bacteria, a gelatin-like layer surrounding the cell wall; helps bacteria stick to one another and to other surfaces

_________________________________ -sweat glands abundant on the palms, soles of the feet, and the forehead

______-the movement of substances across the cell membrane without the spending of energy

__________-the chromosomes of a cell, usually displayed in a systematic arrangement of chromosome pairs in descending order of size; this can be used to study abnormalities, mutations, etc