HURRY Explain how the elimination of a predator from an ecosystem might result in starvation amongst its prey species.

Astudent carefully transfers 30 g of water and 30 g of alcohol in a glass tube, forming two layers and filling the tube completely. after sealing the tube, the student mixes the solutions, and notices a bubble that forms in the tube. what is the mass of the contents in the glass tube after mixing?

This drawing shows a human body system. what is the primary function of this body system?

What substance has a mass of 9.5g and volume of 2.1cm^3