Cations are
A. atoms that have gained electrons.
B. charged subatomic particles.
C. atoms without protons.
D. atoms that have gained neutrons.
E. capable of forming ionic bonds with anions.
Answer: E
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Which of the following are not topoisomers?
A. two molecules having the same number of base pairs but different linking numbers B. two molecules having a different number of base pairs but the same linking number C. two molecules having the same number of base pairs, but one is positively supercoiled and the other is negatively supercoiled D. two molecules having the same number of base pairs, but one is underwound and the other is overwound E. All of these choices are topoisomers.
How are bacteria the beginning and end of the nitrogen cycle? What will be an ideal response?
Y-linked traits are ____
a. known as homozygous traits b. known to skip generations in males c. carried only by males and transmitted only to males d. carried only by females, but are never expressed e. passed on to only 50% of female progeny
Most plants acquire minerals from
A. soil. B. air. C. digested insects. D. rain.