What are the things created from photosynthesis (the products)?

Which class of organic compounds makes up the channels and pumps that move materials from one side of the cell membrane to the other? a.) carbohydrates b.) lipids c.) proteins d.) nucleic acids

Ascientist is studying muscle twitches in chicken quadriceps. to activate the muscle, he needs to provide stimulus to the

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.