As different species evolved, it can be seen that those pressures influenced how their cutaneous senses developed through the changes and sensory adaptation. In different climates and situations, one would need to adapt in order to survive. Ex. Someone who works in construction or gardening would develop callouses from the pressure of the tools they use.
Yes it actually does because in most schools you have to have a gpa of 4.0
Yes that's true but everything should be in a balanced diet because even in a vegetarian diet there are products made of milk such as butter,ghee,cheese and many more so if we consume these types of foods also it is very harmful for our health whereas in a non-vegetarian diet fish is very good for health and consuming little red meat is also good so in both there are good&bad effects.
HOPE YOU UNDERSTAND.