The residents of a small town are concerned about possible pollutants being released by a nearby chemical plant. The cause of their concern is the recent discovery of dozens of small tadpoles with legs in ponds near the chemical plant. What is a possible explanation for these legged tadpoles?
A. The chemical plant is releasing chemicals that are similar in structure to G proteins.
B. The chemical plant is releasing chemicals that are similar in structure to steroid hormones.
C. The chemical plant is releasing chemicals that are similar in structure to aldosterone.
D. The chemical plant is releasing chemicals that are similar in structure to cyclic AMP.
E. The chemical plant is releasing chemicals that are similar in structure to thyroid hormones.
Answer: E
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