Muscle tissues signaling muscle tissues to contract.
Hi lovely,
The answer you're looking for would be Biosphere.
The spectrum<span> of </span>electromagnetic radiation<span>, including visible light, which </span>radiates<span> from</span>stars<span> and other hot celestial objects. Spectroscopy can be used to derive many properties of distant stars and galaxies</span>
Chewing a saltine cracker is a physical change
The major organ that you would find in the lymphatic system would be the spleen.
