This document summarizes sponges and cnidarians. Sponges are aquatic animals that do not move and have pores to circulate water through their jelly-like bodies. Cnidarians are also aquatic animals with a tubular body and tentacles that they use to hunt. Examples of cnidarians include corals and jellyfish.

1. Sponges
and
Cnidarians.
By : Aadithya suresh,Aditya shinde,
Bennet , Mishitha , Mavrin ,Pratham .

2. Sponges
Sponges are animals of the phylum
Porifera. They are multicellular
organisms that have bodies full of
pores and channels allowing water
to circulate through them,
consisting of jelly-like mesohyl
sandwiched between two thin layers
of cells

3.  Sponges (PORIFERA) are simple aquatic
animals which do not move from one place to
another but they are fixed in one object.
 Ancient Greek thought that they were plants.
 They have a sac piercing pores hence the
name Porifera.
 Water containing food particles are taken into
the body by the cavity.
 Cavities are small holes or parts from their
body.

4. Examples of sponges.

5. Cnidarians

6. Cnidarians
Cnidarians is a phylum
containing over 10,000 species
of animals found exclusively in
aquatic and mostly marine
environments. Their
distinguishing feature is
cnidocytes, specialized cells
that they use mainly for
capturing prey

7.  Cnidarians are aquatic animals with a
tube like structure body.
 It has a single hole which takes in water
as well agests food.
 Cnidarians are radially symmetrical
which means they are only symmetrical
in one place .
 They have tentacles in their body.
 The tentacles are used to hunt and
protect their selves.

8. Examples of cnidarians
 Corals. Jelly fish



9. Check your progress
What are sponges?
(2.5)
What are
cnidarians?(2.5)
Give 2 examples of
cnidarians.(2)

10. Answers of check your progress.
 ANS 1 : SPONGES ARE AQUATIC ANIMALS WHICH DO
NOT MOVE FROM ONE PLACE TO ANOTHER.
 ANS 2 : Cnidarians are aquatic animals with a tube like
structure body.
 ANS 3: Corals. JELLY FISH

