The bones in bat wings and those in the human arm are ____
a. homologous structures
b. comparative structures
c. analogous structures
d. repetitive structures
e. vestigial structures
ANSWER: a
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Which one of the following correctly lists the sequence in which the plant cell wall is synthesized?
A. primary cell wall secondary cell wall middle lamella B. secondary cell wall middle lamella primary cell wall C. secondary cell wall primary cell wall middle lamella D. middle lamella primary cell wall secondary cell wall E. middle lamella secondary cell wall primary cell wall
Which of the following complicates the generation of an evolutionary tree?
A. vertical gene transfer B. linkage analysis C. changes in mitochondrial DNA D. carcinogens in the environment E. multiple birth (e.g., twins)
Given what you now know, what information is most likely to produce the correct answer?
What will be an ideal response?
What subunits make up the DNA polymer?
a. ribose combined with one of the four bases A, T, G, or C b. deoxyribose combined with one of the four bases A, T, G, or C c. amine groups combined with sugar-phosphate groups d. amine groups combined with one of the four bases A, T, G, or C