Question

characteristic features of ostiechthyes​

Answer 1

Answer:

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ᴄʟᴀꜱꜱ ᴏꜱᴛᴇɪᴄʜᴛʜʏᴇꜱ ɪɴᴄʟᴜᴅᴇꜱ ᴀʟʟ ʙᴏɴʏ ꜰɪꜱʜᴇꜱ. ʟɪᴋᴇ ᴀʟʟ ꜰɪꜱʜᴇꜱ, ᴏꜱᴛᴇɪᴄʜᴛʜʏᴇꜱ ᴀʀᴇ ᴄᴏʟᴅ-ʙʟᴏᴏᴅᴇᴅ ᴠᴇʀᴛᴇʙʀᴀᴛᴇꜱ ᴛʜᴀᴛ ʙʀᴇᴀᴛʜᴇ ᴛʜʀᴏᴜɢʜ ɢɪʟʟꜱ ᴀɴᴅ ᴜꜱᴇ ꜰɪɴꜱ ꜰᴏʀ ꜱᴡɪᴍᴍɪɴɢ. ʙᴏɴʏ ꜰɪꜱʜᴇꜱ ꜱʜᴀʀᴇ ꜱᴇᴠᴇʀᴀʟ ᴅɪꜱᴛɪɴɢᴜɪꜱʜɪɴɢ ꜰᴇᴀᴛᴜʀᴇꜱ: ᴀ ꜱᴋᴇʟᴇᴛᴏɴ ᴏꜰ ʙᴏɴᴇ, ꜱᴄᴀʟᴇꜱ, ᴘᴀɪʀᴇᴅ ꜰɪɴꜱ, ᴏɴᴇ ᴘᴀɪʀ ᴏꜰ ɢɪʟʟ ᴏᴘᴇɴɪɴɢꜱ, ᴊᴀᴡꜱ, ᴀɴᴅ ᴘᴀɪʀᴇᴅ ɴᴏꜱᴛʀɪʟꜱ.

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Answer 2

Explanation:

class ostiechthyes include all bony fishes. like all fishes ostiechthyes are cold blooded vertebrates that breathe through Gill and use fins for swimming. bony fishes share several distinguishing features : a skeleton of bone ,scales, paired fins,one pair of gill openings,jaws and paired nostrils