A cylindrical piece of metal is 4.5 dm in height with radius of 5.50 x 10^-5 km. a) Calculate the volume in milliliters to the correct significant figures given V=πr^2h for a cylinder.
b) Calculate the volume in mm^3
c) Calculate the density in units g/L to the correct number of significant figures given the metal has a mass of 6.54 x 10^5 grams

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.

1) describe the physical layout of the ocean floor ? 2) explain how the dumbo octopus swims differently than other octopus species and why this would be an advantage in the aphonic zone . 3) why are the types of organisms that live at each underwater hot vent so dramatically different ?

Write a balanced equation showing the formation of copper (ii) nitrite from its elements