Answer:
heart , liver , stomach and kidneys
The discovery of the Cell Theory has greatly impacted modern science. These have a membrane surrounding their nucleus as well as one surrounding the cell itself. In conclusion, the cell theory has helped scientists successfully study cells and their functions using microscopes and other advanced technology.
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The answer is alternation of generation. It occurs in those plants and algae in the Archaeplastida and the Heterokontophyta that have distinct sexual haploid and asexual diploid stages. The relationship between the sporophyte and gametophyte varies among different groups of plants. In those algae which have alternation of generations, the sporophyte and gametophyte are separate independent organisms, which may or may not have a similar appearance. In liverworts, mosses, and hornworts, the sporophyte is less well developed than the gametophyte and is largely dependent on it. In all modern vascular plants the gametophyte is less well developed than the sporophyte.
It is called death when you have to much carbon dioxide
the plants developed due to a lack of water and a need to preserve as much water as possible
