In some bacteria, a capsule surrounds the cell wall. It is made up of
A. pili.
B. glycoprotein.
C. gelatin.
D. peptidoglycan.
E. a lipopolysaccharide.
Answer: C
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Schleiden and Schwann stated the "cell theory," which in its modern form says:
A. all organisms are composed of one or more cells, all cells require oxygen and all cells arise by division of other cells. B. all organisms are composed of one or more cells, all cells are the smallest living things and all cells arise by division of other cells. C. all organisms are composed of one or more cells, all cells arise spontaneously and all cells vary in size and shape. D. all cells will arise spontaneously, all cells require oxygen and all cells are composed of one or more cells.
The breakdown of larger molecules into smaller ones
What will be an ideal response?
Because geneticists can't use human subjects for experimentation, a ____ is used to obtain an analysis
of a genetic family history. a. blood test b. hair sample. c. tooth impression. d. pedigree chart. e. photograph analysis.
The wings of a bat and a bird are examples of
A. analogous structures. B. homologous structures. C. vestigial structures. D. homeotic structures. E. heterologous structures.