Atoms that gain electrons are now
A. positively charged.
B. negatively charged.
C. neutral.
D. lighter.
B
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Which of the following is nonpolar?
A) a positive ion B) a negative ion C) a neutral ion D) a molecule with no partial charges
Respond to the following statements with reference to the five terms below.
A. Blocks of cells in the mesoderm that develop into bones and the skeletal muscle B. Consists of an outer layer of cells, a cavity, and an inner cell mass C. This is the first primary tissue layer to form. D. It forms between the other two primary tissue layers. E. This starts the gut's inner lining.
Which of the following groups of amphibians are legless and live under the leaves in the tropical rain forests?
a) Caecilians b) Frogs and Toads c) Salamanders d) Glass Snakes e) Cave Salamanders
Passive immunization, in which a person is given antibodies, is a type of ___________
A) Autoimmunity B) Innate immunity C) Immunotherapy D) Cell-mediated immunity