Answer:
The correct answer would be B) the flow of water through the body of a sponge.
Sponges are multi-cellular organisms which are devoid of organ systems like digestive system, nervous system, circulatory system et cetera.
They have a unique feeding system in which they keep constant water flow through their bodies. They obtain food and oxygen and remove waste through this water movement.
The movement of water throughout the sponge is unidirectional in nature. It enters the sponge body through ostia and exit from the osculum.
As the water is pumped out, the cells present in the walls filter out the food present in the water.
Answer: Copper Sulfate and Sodium Hydroxide indicates the presence of _NaOH___CuSO4______. A positive result will change color to __pale blue_________.
Explanation:
It's the way in which two identical cells can be made from an original.
C
200000090000000 characters
B.Nucleus is the cell part that contains an organism's genome.