In an ecosystem, which of the following is NOT an abiotic factor?
(thE SUBJECT IS SCIENCE)

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains

How do you lengthen a pattern piece? (family and consumer science, sewing)

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.