The ability to exist as either a trophozoite or a cyst is characteristic of many
A. fungi.
B. viruses.
C. protozoa.
D. bacteria.
C
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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.
____ are dome-shaped structures composed of
layers of early cells and sediments.
a. Meteorites b. Pumice stones c. Stromatolites d. Rhyolites e. Ignimbrites
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
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.