It must be durable and available
The paramecium would not be able to get rid of excess water so the cell would burst.
FUNCTION OF THE CONTRACTILE VACUOLE:
- The contractile vacuole is an organelle present in protist organisms like paramecium, amoeba etc.
- The contractile vacuole functions to regulate water balance in the cells of organisms that they are found. Contractile vacuole performs this function by storing excess water and expelling the out of the cell.
- Hence, if a disease affected a paramecium's contractile vacuoles, stopping the normal functioning of the vacuoles, the paramecium would not be able to get rid of excess water so the cell would burst.
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Since homologous means same structure different functions, it shows that animals evolve to have the same structure as their ancestors but, have different uses to the part
The correct answer is option eosinophil: bacterial macrophage
Eosinophil is responsible for defense against parasitic infections and few are involved in organ formation.