Which of the following is NOT a type of energy?

The correct answer is the option that refers to "Seed." A seed is a biological structure that can grow into a new plant and is not classified as a type of energy. Rather, it is an organism's reproductive unit containing the embryo and the nutrients needed for its development.

In contrast, heat, light, and chemical energy are all forms of energy. Heat energy refers to the energy that comes from the temperature of matter, while light energy is the energy carried by light waves, and chemical energy is stored within the bonds of chemical compounds and released during chemical reactions. These types of energy play crucial roles in various biological processes, such as photosynthesis and cellular respiration. Understanding the distinction between energy types and biological entities like seeds is fundamental in biology.