Aristotle was the first scientist who attempted to divide organisms in group, he first divided then in animals and plants.
The animals were further classified as "with blood" and "without blood", being the with blood the humans and mammals, and egg-bearing animals. The "without blood" are the invertebrates, like insects, crustacea and mollusks.
The plants, for Aristotle, were sub
Carbon is found in the non-living part of the hydrosphere, atmosphere, and Geo-sphere, as carbonate (CaCO3) rocks and dead organic matter, such as humus in soil.
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<em>Ossification is a process in which the mesenchymal cells and cartilages convert to bone during development. it is has two types: Membranous and endochondral ossifications. It occurs in mesenchyme which has formed a membranous sheath (figure 4) .</em>
Answer:el mundo de pero....... no entiendo
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