Question

11.In which phylum first excretory organs are formed?​

Answer 1

Answer:

Explanation:

This implies that in aquatic forms the excretory organ is principally of ... that each invertebrate phylum has evolved its own particular type of excretory organ; ... Some protozoan animals possess an organelle having the form of an internal sac

Answer 2

in case of the Phylum porifera there is excretory organs.

Explanation:

• There are certain gemmules which are present in the Phylum porifera. As a result of this there is certain organs which are present which helps the organism to excrete.

• Water diffusers inside the body of the porifera by using small pores which are known as gemmules and the water containing all the harmful nitrogenous waste also moves about out of the body .

To know more about Phylum porifera,

what are the characteristics of the phylum porifera - Brainly.inhttps://brainly.in/question/8082438