Study the diagram of the two animals. Which statement best describes the animals?

Animal X begins life as a tadpole, and animal Y begins life as a larva that looks like the adult.

Animal X begins life as a larva that looks like the adult, and animal Y begins life as a tadpole.

Both animal X and animal Y begin life as a tadpole and change form as they develop.

Both animal X and animal Y begin life as a larva that looks like the adult.

Effect of rotenone and antimycin a on electron transfer rotenone, a toxic natural product from plants, strongly inhibits nadh dehydrogenase of insect and fish mitochondria. antimycin a, a toxic antibiotic, strongly inhibits the oxidation of ubiquinol. (a) explain why rotenone ingestion is lethal to some insect and fish species. (b) explain why antimycin a is a poison. (c) given that rotenone and antimycin a are equally effective in blocking their respective sites in the electron-transfer chain, which would be a more potent poison? explain.