Answer:
4. rectus femoris
Explanation:
This muscle is nearest to the top of the thigh and is the most end; nearer the head of the pig in the quadricep.
It actions help to extend the lower leg and knee, stretch the hip.
They have the least energy and longest wavelengths
Answer:
D. Mass extinction events separate the three eras from each other
Explanation:
The Phanerozoic represents an eon, and it is the most recent one. It is further divided into three eras, Paleozoic, Mesozoic, and Cenozoic. The division between the tree eras is because of mass extinction events. The Paleozoic and Mesozoic era are divided by the Permian-Triassic mass extinctions. The Mesozoic and Cenozoic are divided by the Cretaceous-Paleogene extinction. The Cenozoic era is still in existence, as there hasn't been a mass extinction of a magnitude big enough so far.
The answer should be photosphere zone.
