Phylum Arthropoda - Questions & Answers | Exam2Win

Take a timed mock test specifically for Phylum Arthropoda.

241. Which is associated with pearl formation?

A. Pecten

B. Ostrea

C. Nautilus

D. Pinctada

Explanation:

242. Molluscan blood contains/respiratory pigment of molluscs is

A. Haemoglobin

B. Haemozoin

C. Haemocyanin

D. All the above

Explanation:

243. Which one contains hard shell, muscular body, ommitidiophores and foot

A. Periplaneta

B. Limulus

C. Pila

D. Tortoise

Explanation:

244. Pila shows summer

A. Hibernation

B. Aestivation

C. Emigration

D. Immigration

Explanation:

245. Closed circulatory system occurs in

A. Snail

B. Cockroach

C. Cuttle Fish

D. All the above

Explanation: