The evolutionary sequence in the development of a complex character can be best analyzed through
A. phylogenetics.
B. synapomorphies.
C. classification.
D. taxonomy.
E. homoplasies.
Answer: B
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Which of the following is true of chemotherapeutic agents?
A. They create broken chromosomes or stalled replication forks. B. The cytotoxic effect of these DNA damaging agents requires the cell to be actively dividing. C. These agents are toxic to cancer cells because they are actively dividing to form a tumor. D. The adverse side effects of chemotherapeutics are strongest in cell types that divide rapidly (hair, blood, and the gastrointestinal tract). E. All of these statements are true.
Which one of the following is the least likely reason that bipedalism evolved in hominoids?
A. requires less energy than walking with all four legs B. frees the hands for tool-making C. frees the hands for carrying food to be shared with others D. allows better surveillance for predators E. increases access to food resources
A cell's reservoir of NADPH composes its _______.
a) reducing power b) structural stability c) backbone reservoir d) oxidizing power
Protonephridia are found in ____
a. annelids b. mammals c. flatworms d. insects e. reptiles