A 100% platinum model of an Airbus 380 weighing 73.52 grams was given to a pilot as a gift for his 10th anniversary. His son was studying chemistry and determined that it was 1.35 moles of
platinum. Did he correctly calculate the number of moles?

I need evidence on why this is true please help I need this for today

name and explain one of the event that occurs during meiosis that increases the variation in offspring even more than simple reproduction?

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products

the answer is cell division : )

only about ten percent of the energy at one trophic level is passed on to organisms at the next trophic level. the remainder of the energy is used in life processes or lost as heat.