These are the regions of the earth that are occupied by living organisms.
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Plastids - food and pigment storage
Golgi apparatus - transportation highway of the cell
Ribosomes - protein produces
Mitochondria - powerhouse of the cell
Lysosomes - enzyme producer for digestion
Endoplasmic reticulum - transportation highway of the cell
Answer: A). Flatworms
The illustration shows planaria which is a free living organism. It has flat shape and simple structure. This animal belongs to group of Flatworms. The flatworms do not have well developed respiratory and circulatory systems, these are simple organisms which derive the oxygen and nutrients by diffusion.
