A root emerges from a seed because of the force of
A: water against the seed coat.

A teacher demonstrates a chemical reaction. A student observes that the test tube in which the reaction occurs becomes warm. What is the source of the thermal energy generated by the reaction?
A: energy stored in the reactants

DNA molecules contain the genetic information that determines the characteristics of a living organism. How do DNA molecules express the genetic information they contain?
A: by directing the process of protein synthesis

Which of these describes a property of all matter?
A:
All matter is made of atoms.