Answer:
For a second there I thought it was a dog
CO2molecule is a reactant in the first step and a final product in the fourth step of the Calvin-benson
Answer:
The special cells of the sponge include those that filter sea water; cells that are phagocytic (that engulf and digest food particles); those that form the external 'skin', breathing pores and tubes through which water enters and leaves the body; and those that secrete the mineral and organic skeletons, called spicules and fibres, respectively. Sponges are also unique because nearly all their cells can change function as required (totipotency).
Explanation:
<em>PLS MARK ME BRAINLIEST* I hope this helps </em>
