Question

is single-celled organism give rise to multicellular organisms

Answer 1

Single celled organism do not give rise to multicellular organism but Single celled organisms evolved intomulticellular organisms due to the same reason that anything evolves into anything since life began and that is, “it was favored by natural selection,” There is division of labor inmulticellular organisms which allowed increased survivability (fitness).

Answer 2

Answer:

All metabolic activities of life such as respiration, digestion, excretion and reproduction take place at the cellular level. Cells contain genetic materials, which play an important role in the transfer of.hereditary characters from parents to offspring. Cells of multicellular organisms are grouped to formmtissues, which are further organised to form organs. Organs, in turn, form organ systems and organ.systems work together to form what an organism is in its totality. Thus, cells are the basic building structural and functional units of life.