Bonds between two atoms that are equally electronegative are _____
A) hydrogen bonds
B) polar covalent bonds
C) nonpolar covalent bonds
D) ionic bonds
C
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Mendel's work with two-factor (dihybrid) crosses led directly to which of the following?
A. Chromosomal theory of inheritance B. Particulate theory of inheritance C. Law of segregation D. Law of independent assortment E. Theory of biological evolution
Ventilation includes which of the following
A) transport of gases from tissues to lungs B) transport of gases from lungs to tissues C) inspiration D) expiration
The accumulation of fluid at the site of a wound is the result of the secretion of:
A. neutrophils B. leukocytes C. histamines D. kinins
Which of the following statements regarding the currently available fossil record is false?
A) The currently available fossil record shows that the earliest fossils of life are about 3.5 billion years old. B) The currently available fossil record shows that younger strata were laid down on top of older strata. C) The currently available fossil record documents gradual evolutionary changes that link one group of organisms to another. D) The currently available fossil record shows that the first life-forms were eukaryotes.