Q. Which of the following statements are true/false? I. Cell aggregate body plan is found in phylum-Platyhelminthes II. Radial symmetry is the most common symmetry found in animals III. Pseudocoelom is only found in phylum-Aschelminthes IV. All triploblastic animals have a true coelom V. Haemocoel is sometimes observed in animals belonging to phylum-Platyhelminthes
A) I and V are true and II, III and IV are false
B) II, III and V are true and I and IV are false
C) I, II and III are true and IV and V are false
D) I, II, IV and V are false, only III is true
Explanation
Cell aggregate body plan is only found in Porifera. Bilateral symmetry is the most common symmetry found in animals. Pseudocoelom is only found in Aschelminthes. Triploblastic animal like Platyhelminthes lacks a coelom. Haemocoel is present in Mollusca and Arthropoda
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.