Which of these is NOT absolutely necessary to complete a circuit? 1) switch
2) voltage source
3) conductor
4) electronic device

An empty fuel tank can still contain and therefore can be even more dangerous than one full of liquid fuel.

Which characteristics can be used to differentiate star systems? check all that apply.

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.