User talk:Prasanna Supriya
evolution
[edit]evolution started from single cell to organism Prasanna Supriya (talk) 16:46, 13 April 2021 (UTC)
... Prasanna Supriya (talk) 16:50, 13 April 2021 (UTC)
Sponges
[edit]Sponges are MAINLY MARINE animals that make up the phylum porifera. they are among the simplest of all animals, having no tissues pr organs, their bodies consist of 2 layers of cells seperated by a jelly-like layer(mesohyal) that is strengthened by mineral spicules or protein fibers. the body is perforated by a system of pores and water channels called the AQUIFEROUS SYSTEM. Prasanna Supriya (talk) 17:05, 13 April 2021 (UTC)