Question

All of them are characteristics of urochordates, except (A) These are only marine (B) Open type of circulatory system (C) Cranium is absent (D) Development is direct​

Answer 1

Answer:

Answer

Correct option is A

Neural gland

Explanation:

The urochordates or tunicates are a remarkable group of organisms and typically very beautiful and photogenic. All are marine. They comprise three classes, the ascidians or sea squirts, the larvaceans and the thaliaceans. The body is enclosed in a more-or-less translucent tunic. No special excretory organs appear to be present. Nitrogenous waste is excreted as ammonia, which can easily be carried away in the exhalant flow of water and by diffusion from the general body surface.  

So, the correct answer is option A.

Answer 2

Answer:

۞۞۞۞۞۞✪ pophtiion a