Skin in humans is Polygenic if A B C and D all promote skin pigment

Me with biology endocrine system crossword also image left i need with hw

What is a dendrite and what does it do?

How did alexander fleming’s research solve a societal problem? he developed ways to treat inherited diseases. he advocated for regular hand washing to kill germs. he discovered a new type of medicine that could treat infections. he discovered the cause of mad cow disease, an emerging disease.