A stable atom has ________ in its valence shell

A) 4 electrons
B) 2 neutrons
C) 8 electrons
D) 8 protons
E) 10 electrons


C

Biology & Microbiology

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Solenopsis invicta, a species of fire ant, was introduced to the United States from ____

a. South America b. Canada c. Asia d. Africa e. Europe

Biology & Microbiology

The area over which an animal moves in the course of daily activity, but which it does not necessarily defend against other animals, is called what? 

A. family home B. foraging space C. home range D. nesting site E. territory

Biology & Microbiology

All the nucleotide sequences in a transcribed mRNA are used in translation. Indicate whether the statement is true or false

Biology & Microbiology

Polyploidy:a

may be the result of more than one sperm fertilizing an egg. b. is not lethal in humans. c. may be the result of the failure of a chromosome to separate during meiosis. d. can be due to nondisjunction for a chromosome. e. is the mechanism of dosage compensation.

Biology & Microbiology