Plants provide animals with which of the following?
A) food and oxygen
B) food and carbon dioxide
C) carbon dioxide
D) oxygen
E) food
Answer: A
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Epistasis is _______________
A. another term for overdominance B. when one gene can mask the expression of a second gene C. a trait that is only expressed in one sex of the species D. when two dominant alleles can be expressed in the same individual E. None of the answers are correct
The letter "D" in the above figure represents
a. humerus b. pectoral girdle c. skull d. sternum e. pelvic girdle
Susan, a mother with type B blood, has a child with type O blood. She claims that Craig, who has type
A blood, is the father. He claims that he cannot possibly be the father. Further blood tests ordered by the judge reveal that Craig is AA. The judge rules that a. Susan is right and Craig must pay child support. b. Craig is right and doesn't have to pay child support. c. Susan cannot be the real mother of the child; there must have been an error made at the hospital. d. it is impossible to reach a decision based on the limited data available. e. none of these
Scientists can fill in gaps in defining species by DNA sequence analysis.
a. true b. false