<span> The organelle found in most plant cells but not in animal cells is the cell wall.</span>
Answer: B. Speed up the chemical reaction
Explanation: Enzymes help speed up chemical reactions in the human body. They bind to molecules and alter them in specific ways. They are essential for respiration, digesting food, muscle and nerve function, among thousands of other roles.
Diffusion is the movement of molecules from an area where they’re at a higher concentration to areas that have a lower concentration - goo gle
Heat is generated by friction is one of the ways and fuel and air if making flames
