Question

About the movement of fish and earthworms

Answer 1

earthworm have bones . there body is issegmented forms ring all over the earthworm stretch the one parts of its body contraction the other and this alternative stretching and contracting movement

Answer 2

Answer:

$\huge \bold \orange {Required \: Answer}$

MOVEMENT OF EARTHWORM

Tʜᴇ ᴇᴀʀᴛʜᴡᴏʀᴍ ʜᴀs ᴀ ʙᴏᴅʏ ᴛʜᴀᴛ ɪs ᴅɪᴠɪᴅᴇᴅ ɪɴᴛᴏ sᴇɢᴍᴇɴᴛs ᴀɴᴅ ʜᴀᴅ ɴᴏ sᴋᴇʟᴇᴛᴏɴ.Iᴛ ʜᴀs ᴀ ᴀɴ ɪɴᴛᴇʀɴᴀʟ ᴄᴀᴠɪᴛʏ ᴡʜɪᴄʜ ɪs ғɪʟʟᴇᴅ ᴡɪᴛʜ ʟɪǫᴜɪᴅ.Tɢᴇ ᴍɪsᴄʟᴇs ᴏғ ᴛʜᴇ ᴇᴀʀᴛʜᴡᴏʀᴍ ᴀʀᴇ ᴀʀʀᴀɴɢᴇᴅ ᴀʀʀᴀɴɢᴇᴅ ᴀʀᴏᴜɴᴅ ʜɪs ᴄᴀᴠɪᴛʏ.Tʜᴇʀᴇ ᴀʀᴇ ᴛᴡᴏ sᴇᴛs ᴏғ ᴍᴜsᴄʟᴇs ᴛʜᴀᴛ ᴀᴄᴛ ᴘᴇʀᴘᴇɴᴅɪᴄᴜʟᴀʀ ᴛᴏ ᴇᴀᴄʜ ᴏᴛʜᴇʀ.Wʜᴇɴ ᴏɴᴇ sᴇᴛ ᴏғ ᴍᴜsᴄʟᴇ ᴄᴏɴᴛʀᴀᴄᴛs,ᴛʜᴇ ᴏᴛʜᴇʀ sᴇᴛ ʀᴇʟᴀxᴇs.

Tʜᴇ ᴇᴀʀᴛʜᴡᴏʀᴍ ᴀʟsᴏ ʜᴀs sᴛɪғғ ʜᴀɪʀ-ʟɪᴋᴇ ᴘʀᴏᴊᴇᴄᴛɪᴏɴs ᴄᴀʟʟᴇᴅ sᴇᴛᴀᴇ ᴛᴏ ɢʀɪᴘ ᴛʜᴇ ɢʀᴏᴜɴᴅ sᴏ ᴛʜᴛᴀ ᴛʜᴇ ʙᴏᴅʏ ᴄᴀɴ ᴍᴏᴠᴇ ғᴏʀᴡᴀʀᴅ ʙʏ ʀᴇɢᴜʟᴀʀ ᴄᴏɴᴛʀᴀᴄᴛɪᴏɴs ᴀɴᴅ ᴇxᴘᴀɴsɪᴏɴs ᴏғ ᴛʜᴇ ᴍᴜsᴄʟᴇ.

MOVEMENT OF FISH

A ғɪsʜ ʜᴀs ᴀ ʙᴏɴʏ ᴇɴᴅᴏsᴋᴇʟᴇᴛᴏɴ.Iᴛ ᴍᴏᴠᴇs ʙʏ ᴍᴏᴠɪɴɢ ɪᴛs ʙᴏᴅʏ ғʀᴏᴍ sɪᴅᴇ ᴛᴏ sɪᴅᴇ ɪɴ ᴀ ᴢɪɢᴢᴀɢ ᴍᴀɴɴᴇʀ .Tʜɪs ᴘᴜsʜᴇs ᴛʜᴇ ᴡᴀᴛᴇʀ ᴀɴᴅ ᴍᴏᴠᴇs ᴛʜᴇ ғɪsʜ's ʙᴏᴅʏ ғᴏʀᴡᴀʀᴅ.Tɢᴇ ᴍᴜsᴄʟᴇs ᴏɴ ᴇɪᴛʜᴇʀ sɪᴅᴇ ᴏғ ᴛʜᴇ ғɪsʜ's ʙᴀᴄᴋʙᴏɴᴇ ᴇxᴘᴀɴᴅ ᴀɴᴅ ᴄᴏɴᴛʀᴀᴄᴛ ᴛᴏ ᴍᴀᴋᴇ ᴍᴏᴠᴇᴍᴇɴᴛ ᴘᴏssɪʙʟᴇ.

Fɪsʜ ᴀʀᴇ sᴛʀᴇᴀᴍʟɪɴᴇᴅ ɪɴ sʜᴀᴘᴇ-ʀᴏᴜɴᴅᴇᴅ ɪɴ ғʀᴏɴᴛ ᴀɴᴅ ɴᴀʀʀᴏᴡ ᴀᴛ ᴛʜᴇ ʙᴀᴄᴋ.Tʜɪs sʜᴀᴘᴇ ғᴀᴄɪʟɪᴛɪᴇs ᴇᴀsʏ ᴍᴏᴠᴇᴍᴇɴᴛ ᴛʜʀᴏᴜɢʜ ᴡᴀᴛᴇʀ ʙᴇᴄᴀᴜsᴇ ɪᴛ ʀᴇᴅᴜᴄᴇs ᴡᴀᴛᴇʀ ʀᴇsɪsᴛᴀɴᴄᴇ.

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