One important difference between covalent and ionic bonds is that:
A) ionic bonds are much stronger than covalent bonds.
B) in ionic bonds, two atoms share electrons, whereas in covalent bonds, one atom gives one or more electrons to the other atom.
C) in covalent bonds, two atoms share electrons, whereas in ionic bonds, one atom gives one or more electrons to the other atom.
D) in ionic bonds, both protons and electrons can be shared, whereas in covalent bonds, only electrons can be shared.
E) ionic bonds only occur among water-soluble elements.
C) in covalent bonds, two atoms share electrons, whereas in ionic bonds, one atom gives one or more electrons to the other atom.
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Conjugation is useful for determining relatedness between bacteria at the species level because it never occurs between organisms of different genera.
Answer the following statement true (T) or false (F)
On average, what percentage of the energy in one trophic level becomes incorporated into the next higher trophic level?
A) 10% B) 30% C) 50% D) 90%
Genes that have DNA sequences similar to functional genes but that do not appear to produce any functional product are ________.
Fill in the blank(s) with the appropriate word(s).
Generally, in an infection caused by a DNA-containing virus, the host animal cell supplies all of the following EXCEPT
A) RNA polymerase. B) nucleotides. C) DNA polymerase. D) tRNA. E) None of the answers are correct; all of these are supplied by the host animal cell.