Most of an apple fruit is derived from the
a. receptacle.
b. ovary.
c. ovule.
d. endosperm.
e. cotyledons
A
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Scientists believe that the heart of the common (chordate) ancestor of all vertebrates
A. consisted of a single ventricle. B. had four chambers. C. had two chambers. D. had three chambers. E. was little more than a heavily-muscled region of the ventral artery.
A recent (2009) example of a U.S. tariff on foreign imports which caused retaliation from trading partners was the case of a U.S. tariff imposed on Chinese
a. tire imports. b. agricultural imports. c. airplane imports. d. clothing imports.
A primitive groove is the equivalent of a:
a. neural crest.
b. branchial groove. c. blastodisc. d. blastopore. e. neural groove
All of the following are true regarding pedigree analysis EXCEPT that it
A) documents the transmission of a genetic characteristic over two or more generations. B) is exclusively used to study the patterns of inheritance in dogs. C) reveals whether a trait is dominant or recessive. D) can incorporate molecular biology techniques.