Question

A
Select the correct al
(a) Shell of Polystomella Consists of:
(1) NaCl and Silica
(ii) CuSO4 NaCl and Silica
(ii) CuSO4 and MgSO4
(iv) CaCO3 Silica and MgSO4
Ian is the reserve food material of:
nia​

Answer 1

Explaination :-

The shell contains spirally arranged V shaped chambers. Hence it is called "polythalamus or multilocular They overlap one another. These chambers show 'openings' hence it is perforate Through these openings cytoplasm will come out. The cytoplasm is produced into a number reticulopodia.

Answer 2

Answer:

Shell of polystomella is composed of CaCo3 .,NaCl and MgSo4