I THINK
Neanderthals are the closest extinct relatives of modern humans, and lived in Europe and Asia. Recent findings suggest that Neanderthals were closely related enough to interbreed with ancestors of modern humans— about 1.5 to 2.1 percent of the DNA of anyone outside Africa is Neanderthal in origin
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Ocean trenches form when one tectonic plate slides underneath another tectonic plate at an area called a subduction zone. ... Ocean trenches are the deepest parts of the ocean, with the Mariana Trench near Guam having the deepest spot on Earth (the Challenger Deep). Most ocean trenches are in the Pacific.
Explanation:
Answer:
The action potential is conducted into a skeletal muscle fiber by, transverse tubules.