The LD-50 of the insecticide parathion administered orally to rats is 20mg/kg. How much parathion woulGhave to be fed to a rate that weighs .75kg to give a 50% chance of killing it.

Why do consumers feel warmer after eating a meal

Why is silver chloride is an ionic compound

The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.