Assertion Haemocoel in Arthropoda is not lined by the mesodermal epithelium .
Reason Arthropods possess only true coelom .

Name the animals which possess true coelom.

Assertion. Arthropods undergo periodic ecdysis during their growth. Reason. Arthropods have compound eyes.

Which of the following phylum do not possess true coelom?

Assertion : Urinary Bladder is lined by transitional epithelium . Reason : Transitional epithelium keeps the size of the bladder constant at all times.

Assertion : Urinary bladder and ureters are lined by transitional epithelium . Reason : Ureters carry the urine to urinary bladder where it is stored temporarily .

Assertion : Transverse waves travel through air in an organ pipe. Reason : Air possesses only volume elasticity.

Assertion :- Simple cuboidal epithelium is also called as germinal epithelium. Reason :- Cuboidal cells of gonads help in forming gametes.

Assertion :- Simple cuboidal epithelium is also called as germinal epithelium. Reason :- Cuboidal cells of gonads help in forming gametes.

Assertion : Annelids, arthropods, and molluscs are protostomial coelomates . Reason : All the three phyla include members with bilateral symmetry and true coelom.