The ability to exist as either a trophozoite or a cyst is characteristic of many

A. fungi.
B. viruses.
C. protozoa.
D. bacteria.


C

Biology & Microbiology

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Chlorosis in plants is a condition best explained by:

A. lack of water. B. lack of certain minerals. C. lack of oxygen. D. lack of carbon dioxide. E. lack of soil moisture.

Biology & Microbiology

____ are dome-shaped structures composed of

layers of early cells and sediments.

a. Meteorites b. Pumice stones c. Stromatolites d. Rhyolites e. Ignimbrites

Biology & Microbiology

It is now possible for parents to bank the umbilical cord blood of their children; the cells in the cord would then be available for use later in the life of the child to treat a genetic disorder or cancer, should it develop

Indicate whether the statement is true or false

Biology & Microbiology

Manipulation of the genetic makeup of cells or whole organisms is known as

A) genetic analysis. B) DNA splicing. C) molecular biology. D) genetic engineering. E) genomic splicing.

Biology & Microbiology