Which of these is a protein?
a. table sugar
b. sunflower oil
c. collagen

What is one way in which a discovery that is made by using cell technology could change existing scientific knowledge? a. a discovery could lead to a change in experimental methods. b. a discovery could lead to a replacement of a scientific theory. c. a discovery could lead to a new brand of cell culture medium. d. a discovery could lead to a new material for culture flasks.

7th grade question (easy) look at the diagram of the food web. the arrows mean eaten by. what would happen if the number of snakes went down? answer choices are in the image.

Can someone i have no idea of how to do this.