A lamprey eel fastens itself to a host fish, such as a lake perch, and feeds on it. When the fish dies, the lamprey finds another host. Which type of symbiosis is this?​

The relationship between the two is harmful and parasitic

When the ball is rising up, it gains kinetic energy. when the ball reaches the very top, it will have all potential energy, until it falls back down and gains it kinetic energy. finally when you catch the ball or it falls back down, it would have gained its potential energy back.

The answer is reflection.