Question

write note on non-chordates, chordates, characteristics of phylum porifera, phylum cnidaria​

Answer 1

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❥Non-chordates:-

Non-chordates are animals without a notochord – the rod-like elastic structure that supports the body. This phylum consists of a small group of worm-like, marine species with an organ-system level of organization. ... The body of non-chordates generally includes an open type of circulatory system.

❥Chordates:-

Phylum Chordata belongs to the Kingdom Animalia and includes all the vertebrates, i.e., animals with a backbone, and several invertebrates, i.e., organisms without a backbone. They possess a bilaterally symmetrical body and are divided into three different sub-phyla.

❥ Characteristics of phylum porifera:-

• These are pore-bearing multicellular animals.
• The body has no organs.
• They exhibit holozoic nutrition.
• The body is radially symmetrical.
• They can regenerate their

❥Characteristics of phylum cnidaria:-

• Radially Symmetrical.
• Body multicellular, few tissues, some organelles.
• Body contains an internal cavity and a mouth.
• Two different forms exist, medusa and polyp.

★ hope it helps u..★

Answer 2

Answer:

Non-chordates are animals without a notochord – the rod-like elastic structure that supports the body. This phylum consists of a small group of worm-like, marine species with an organ-system level of organization. ... The body of non-chordates generally includes an open type of circulatory system.

❥Chordates:-

Phylum Chordata belongs to the Kingdom Animalia and includes all the vertebrates, i.e., animals with a backbone, and several invertebrates, i.e., organisms without a backbone. They possess a bilaterally symmetrical body and are divided into three different sub-phyla.

❥ Characteristics of phylum porifera:-

These are pore-bearing multicellular animals.

The body has no organs.

They exhibit holozoic nutrition.

The body is radially symmetrical.

They can regenerate their

❥Characteristics of phylum cnidaria:-

Radially Symmetrical.

Body multicellular, few tissues, some organelles.

Body contains an internal cavity and a mouth.

Two different forms exist, medusa and polyp.

★ hope it helps u