20. Development
Animal Development
Problem 11
Textbook Question
Textbook QuestionIn an experiment, a researcher colored a bit of tissue on the outside of a frog gastrula with an orange fluorescent dye. The embryo developed normally. When the tadpole was placed under an ultraviolet light, which of the following glowed bright orange? (Explain your answer.) a. the heart b. the pancreas c. the brain d. the stomach
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