Question

1) Pinacocytes
2) Culial cells
J) TOPHYOU
52. Cephalopod molluscans have a copper containing respiratory pigment in their blood is;
1) Haemerythrin 2) Haemoglobin
3) Chlorocrourin 4) Haemocyanin
53. From the following phylums which one is not considered as both eucoelomates and triploblastic​

Answer 1

In molluscs, blood often has a copper- containing, blue respiratory pigment called haemocyanin. In insects, the blood called haemolymph is colourless. In echinodermates, blood is colourless as it has no respiratory pigment. In annelids, the blood is red with haemoglobin dissolved in plasma.