Geneticists have been working for years to develop higher quality cotton fibers by selectively breeding plants with better fibers . What is a drawback of this selective breeding process ?

Based on its chemical properties, identify the position of each chemical family on the periodic table.

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.

How is the shape of the poem “peer” connected to its meaning?