Animal Kingdom Question 374
Question: A list of animals is given below. Identify the animals with open circulatory system and choose the correct answer. A) Ascidia B) Cockroach C) Earthworm D) Prawn E) Sliverfish (F) Snail (G) Squid
[Kerala CET 2005]
Options:
A) B, D, F
B) A, B, D, F
C) C, D, E, G
D) B, D, E, F
Show Answer
Answer:
Correct Answer: D
Solution:
The open circulatory system is common to mollusks and arthropods.
Open circulatory systems (evolved in crustaceans, insects, mollusks and other invertebrates) pump blood into a hemocoel with the blood diffusing back to the circulatory system between cells.
Blood is pumped by a heart into the body cavities, where tissues are surrounded by the blood.
Hence Cockroach(ARTHROPODA), Prawn(ARTHROPODA), Silverfish(ARTHROPODA), Snail(MOLLUSCA) are examples for animals having an open circulatory system.
So, the correct answer is ‘B, D, E, F’.
BETA
