Q1 of 24 Page 75

Identify me.

Though I am multicellular, there are no tissues in my body. What is the name of my phylum?

Porifera

Explanation- Animals belonging to the phylum Porifera have the simplest body plan and are called as sponges. They bear numerous pores on their body.


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1

Identify me.

My body is radially symmetrical. Water vascular system is present in my body. I am referred as fish though I am not. What is my name?

 1

Identify me.

I live in your small intestine. Pseudocoelom is present in my thread like body. In which phylum will you include me?

 2

Write the characters of each of the following animals with the help of classification chart.

Bath sponge, grasshopper, rohu, penguin, frog, lizard, elephant, jellyfish.

 3

Write in brief about progressive changes in animal classification.