Answer:
Heterozygous is the answer
Answer:
Extra chromosomes can result in birth defects like down syndrome .
Explanation:
Answer:
The unified cell theory
Explanation:
The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells. Rudolf Virchow later made important contributions to this theory.
They are all living, they grow, reproduce, excrete, respire and require nutrition. They all differ, the human, oak tree, sea weed and mushroom are multicellular( prokaryotes), and the rest are Unicellular( Eukaryotes). The sea weed& most bacterium produce their own food while the rest need to feed.