Animal Kingdom Question 1038

Question: Which of the following phylum is being described by the given statements?

(i) They are bilaterally symmetrical, triploblastic, segmented and coelomate animals.

(ii) The body consists of head, thorax, abdomen and have jointed appendages.

(iii) Circulatory system is of open type.

(iv) Excretion takes place through malphigian tubules.

Options:

A) Arthropoda

B) Annelida

C) Mollusca

D) Echinodermata

Show Answer

Answer:

Correct Answer: A

Solution:

phylum Arthropoda- which is the largest phylum of animal kingdom and includes all insects.These are bilaterally symmetrical, triploblastic, segmented and coelomate animals and their exoskeleton is made of chitin.

Arthropoda means jointed appendages(arthros-joint, poda-appendages).Circulatory system is of open type and excretion is through malpighian tubules.

These are mostly dioecious. Eg- Cockroach,Honey bee,etc.