SEP Design Your Solution Biosphere 2 was an attempt to have humans live within a perfectly closed system , as a model for living on other planets . The first attempt failed because the system began losing C*O_{2} , which was chemically reacting with the exposed concrete walls . How would you go about designing a habitat that is a closed system ? Explain how matter and energy would flow within the system .

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.

Which statement describes james chadwick’s discovery.

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.