Answer:
It has physically increased in size. Often, growth of a multicellular organism occurs as more cells are created. In unicellular organisms (like bacteria), growth still occurs. ... For this reason, most biologists will tell you that development only occurs in multicellular organisms, not in unicellular ones.
Answer:
Las bacterias pueden utilizar la mayoría de los compuestos orgánicos y algunos inorgánicos como alimento, y algunos pueden sobrevivir a condiciones extremas.
They produce oxygen they are used as shelter, they are used for blocking the shade, they sustain other animals that sustain the planet and us.