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Pyramids are a type of polyhedron that has a polygonal base with triangles extending from it to form an apex. The pyramids of Egypt would be examples of square pyramids because the bottom of them are squares. Likewise, you could have a pentagonal pyramid, hexagonal pyramid, pentagrammic pyramid etc.
Because plants are at the bottom of the food chain and it they didn't provide food for other animals the whole food chain would die
the slaves
At the bottom of the social pyramids peasants and slaves are at the bottom.
Because of lack of oxygen and sunlight.
In the pyramids the bases of each are large at the bottom and as they go higher it gets smaller.
No, the pyramids in Egypt have 5 sides(including the bottom); a tetrahedron has 4.
In bottom,there are the producers. As examples they are like plants,algae etc
the organisms in the bottom of the food chain are usually producers.
because they feed on the little micro organisms and such at the bottom of the lake or pond. hope this helps. :)
An octahedron, which looks like 2 pyramids glued bottom to bottom.