Back in the 1800's. There were 2 variations of moths. 1 with white and 1 with black. The black colored moths could blend in the with the coal mines to hide from predators.
Im pretty sure that if we got all of our energy from the sun then there would be no energy at night so no
The lymphatic vessels are thin-walled valvular structures, composed of lymphangions, which carry the lymph from the tissues, via the lymph nodes, to the bloodstream. For this reason, they are analogous to veins and venules.
The lymphatic network is present throughout the body with the exception of the central nervous system and non-vascularized tissues.
It is separated in two circuits: one for the upper right quarter of the body, and one for the rest.
The lymphatic channels join together to form lymphatic vessels more and more voluminous.
Finally, The lymph is drained by two large collectors:
* The right lymphatic canal
* The thoracic duct.
All lymphatics thus end up in the upper vena cava system by two separate circuits.
<span>A) The first law - The head moves until a force stops it. </span>
