detailed explanation of following tags along with attractive pictures also with examples.

1. Made By :- anushika bansal

3. These organisms are multicellular animals
having eukaryotic nucleus and heterotrophic
or parasitic. Their cells do not have cell
wall, most of the animals are mobile and
most of the animals have locomotary organs
(except sponges). These animals are free
living, parasitic or symbiotic. These

5. Meaning of word Porifera is animal having pores. In simple
multicellular animal cell has cellular organization. On body
surface pores are found. Cavity in middle is known as
Spongeoel, that open outside by a large openingis called
osculum. Animals are mostly marine and few live in fresh
water. Animals are stationary. The animals are of different
shapes and solitary or colonial.Porifera cells do not show
division of labour. They reproduce both sponge asexually
and sexually. Example : Venus' flower basket, sycon,

6. Cnidaria

7. The name Cnidaria comes from the Greek
word "cnidos," which means stinging nettle.
Casually touching many cnidarians will make
it clear how they got their name when their
nematocysts eject barbed threads tipped
with poison. Many thousands of cnidarian
species live in the world's oceans, from the
tropics to the poles, from the surface to
the bottom. Some even burrow. A smaller
number of species are found in rivers and
fresh water lakes.

8. Platyhelminthes
Flatworms

9. The simplest animals that are bilaterally
symmetrical and triploblastic are the
Platyhelminthes, the flatworms. Flatworms
have no body cavity other than the gut and
lack an anus; the same pharyngeal opening
both takes in food and expels waste. Because
of the lack of any other body cavity, in larger
flatworms the gut is often very highly
branched in order to transport food to all
parts of the body. The lack of a cavity also
constrains flatworms to be flat; they must
respire by diffusion, and no cell can be too
far from the outside, making a flattened
shape necessary.

10. Porifera– pore bearing; non-motile; commonly called s
involves very minimal differentiation; found in marine
Coelenterata– sack like animals; a cavity is present in th
diploblastic in nature ; living in water; live in colonies li
solitary like Hydra.
Platyhelminthes– flat forms of animals; complexly desig
symmetrical; triploblastic in nature; no true internal bo
dorsiventrally flattened called flatworms; either free livin
flat, elongated, soft, tape-like animals.