What organelle is found only in plant cells, provides structure and support outside of cell, and protect the plant and provide rigid support

Which two scientific disciplines are bridged by pharmaceutical drugs? chemistry and forensics chemistry and medicine biology and forensics biology and criminology

Which is true of a liquid? it has a definite volume but not a definite mass.it has a definite mass but not a definite volume.it has a definite volume but not a definite shape.it has a definite shape but not a definite volume.

Chemistry worksheet - i am not sure what they are asking for exactly?