Is there context for this? I can definitely explain the different types of consumers but I don't know how the mouse and ant are related.
The element starts off as 100%. half of 100% is 50% and half of 50% is 25%. the element has emitted 2 times the half life which is 10,000 x 2 = 20,000
the fossil bone is 20,000 years old
Human beings can only see a small fraction of the wavelengths that make up the electromagnetic spectrum. <em>;)</em>
The muscle pulling on a bone often works like a type of simple machine called a lever. Most of the bones of the limbs (arms & legs) act as levers for the body. I hope that this is the answer that you were looking for and it has helped you.
