Discuss why large insects and Arthropoda were selected against a long time ago which caused them to evolve into much smaller organisms.

all matter is made up of atoms

in any element all atoms are the same

elements in a compound are always in a constant ratio: apex

there is not 1 highest source of protein, but there are many; meats, fish, poultry, seafood, cheese, eggs, yogurt and milk. the only non complete animal food that is beneficial is gelatin.

sorry if this did not , have a great day!