The innermost membrane envoloping the embryo in the uterus is Endometrium.
We basicly can't digest them as it has cellulose and we can't digest cellulose .acc. to me in olden days early men used to survive with raw green plants because the cellulose is digested by our appendix but slowly as we stopped eating raw green plants the appendix lost it function tooo. so we should always eat a selective plant like lettuce
They would be the same when used to power the blood cell vessels in order to power the blood cells. the difference is that they all power and work differently on different parts of the body.
Answer is Middle Paleozoic era.
Paleozoic era was in 542 Ma - 245 Ma and it has 6 periods as Cambrian, Ordovician, Silurian, Devonian, Carboniferous and Permian.
360-280 Ma - forming of vascular plants with woody tissues, seeds and veins.
430 - 410 Ma - forming of jawed fishes and first amphibians.
420 Ma - forming of scorpions
360 Ma - forming of crustaceans.
