<span>Pond organism is unicellular and crab is multi cellular.
The simplest level at which life exist is called the cell. Unicellular organism contain only one cell while multi cellular organisms contain more than one cell. Multi cellular organisms can be organized into various levels such as Cells>tissues> organs>organ systems> organism. Thus pond organism is unicellular under microscope and crab is multi cellular.</span>
Answer:
the bones of the forelimbs arm
Answer: Food
Explanation: Organisms get the energy they need through food. Some organisms, called autotrophs, create their own food using photosynthesis.
The answer is c hope that helped
SEGMENTED BODIES
Annelids are your oligochaetes (earthworms), polychaetes (bristle worms), hirudenes (leeches) and some more. Their main characteristic is true segmentation