Three scientists are credited with the development of cell theory. Matthias Schleiden observed that all plants were made of cells; Theodor Schwann observed that all animals were also made of cells; and Rudolf Virchow observed that cells only come from other cells.
<span>Living Things interact in an Environment where there is water, soil, and</span><span>
sunlight.
Hop this helps! :D
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Answer choice A. Stasis.
Stasis is a block of little to no change in a species.
Homeostasis is maintained by the respiratory system in two ways: gas exchange and regulation of blood pH. Gas exchange is performed by the lungs by eliminating carbon dioxide, a waste product given off by cellular respiration.
