Question

5. Which of the following is found in sponges only?
(i) Mesoglea (ii) Nerve cells (iii) One exit​

Answer 1

Answer:

a option is correct..

Explanation:

mark me as brainiest..

Answer 2

Answer:

Explanation:

The term "mesoglea" describes the tissue that serves as a hydrostatic skeleton in cnidarians like coral and jellyfish. It is similar to but different from mesohyl, which is a broad term for sponge tissue.

Water makes up the majority of the mesoglea. The mesoglea is made up of a variety of materials, including water and fibrous proteins like collagen and heparan sulphate proteoglycans. [1] The mesoglea is primarily acellular, however it does include muscle bundles and nerve fibres in cnidaria and ctenophora. The epithelial layers are just over other nerve and muscle cells.  Additionally, the mesoglea has roving amoebocytes that phagocytose detritus and microorganisms. These cells also produce antibacterial compounds to combat infections.

Nerve cells

The nerve cell is the fundamental building block of communication in the neurological system (neuron). The cell body, a significant branching fibre (the axon), and numerous smaller branching fibres make up each nerve cell (dendrites).

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