The proper order of embryonic development is
A. morula-cleavage-blastula-gastrula.
B. gastrula-cleavage-blastula-morula.
C. cleavage-morula-blastula-gastrula.
D. blastula-cleavage-morula-gastrula.
Answer: C
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Common octocorals are the:
a. sea pens. b. gorgonians. c. sea anemones. d. fire corals. e. sea nettles.
What molecule can oxidize NADH?
A. ubiquinone B. acetaldehyde C. lactate D. isocitrate E. glucose
Four of the five answers listed below are layers of the digestive tract. Select the exception
a. peritoneum b. mucosa c. serosa d. submucosa e. muscle layer
In order to be useful for constructing a phylogeny, a character must:
A. have a genetic basis. B. vary within a species. C. have only one state. D. show the same state across several species. E. All of the answer options are correct.