False. Humans need decent hours of sleep to function properly and especially if you have school/classes or a job to attend to, you must get sleep so you can gain energy. In your sleep you breathe, and when you breathe for the amount of hours you actually lose weight.
The answer would be nodding.
First class lever refer to a lever on which the resistance exist in one one side of the fulcrum and an effort is made on the other side you can't get a reaction unless something else causes a reaction.
If an organism can adapt to its environment, it is more likely to survive because it changes and adheres to things
D. The percentage of muscle and body fat is often defined as the mass of the body which is why this is taken into account when measuring the BMI for children and teens. It might not use all of the fat, but some parts of it is needed to measure the mass effectively.