Physical fitness in volver the proper functioning of which body systems ?

Identify the type of energy used in each action. the flexing of an arm muscle: a signal transduction process by a neuron: a ball at the top of a hill: 1. electrical energy 2. mechanical energy 3. gravitational potential energy

Which describes the changes in the earths motion?

Autonomous underwater explorers will be used to gather large-scale ocean information select the best answer from the choices provided ot