A. They share a common ancestor because otherwise they would not have similar arrangements of bones. It doesn't matter that humans can't fly
Answer: If you have an excess of enzyme but not enough substrate, the reaction will be limited by the substrate availability.
Explanation: Once you add more hydrogen peroxide to the solution, the reaction rate will increase as more substrate molecules can collide with the enzyme, forming more product.
Answer: 3.friction
Explanation: friction is a force of resistance acting between objects in contact and tending to dampen their motion
