Biology, asked by voney5545, 9 months ago

In some chordates, the notochord is modified as the vertebral column. Such animals are called vertebrates. Which one of the following statements makes sense?

Answers

Answered by Anonymous

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ᴛʜᴇʏ ʙᴏᴛʜ ᴘᴏssᴇss ᴛʜᴇ ᴄᴏᴍᴍᴏɴ ғᴇᴀᴛᴜʀᴇs ᴀ ɴᴏᴛᴏᴄʜᴏʀᴅ, ᴀ ᴅᴏʀsᴀʟ ʜᴏʟʟᴏᴡ ɴᴇʀᴠᴇ ᴄᴏʀᴅ, ᴘʜᴀʀʏɴɢᴇᴀʟ ɢɪʟʟ sʟɪᴛs ᴀɴᴅ ᴘᴏsᴛ-ᴀɴᴀʟ ᴛᴀɪʟ. ᴛʜᴇʏ ғᴜʀᴛʜᴇʀ ᴇᴠᴏʟᴠᴇᴅ ᴡʜᴇʀᴇ ᴛʜᴇ ɴᴏᴛᴏᴄʜᴏʀᴅ ᴄʜᴀɴɢᴇᴅ ɪɴᴛᴏ ᴛʜᴇ ʙᴏɴʏ ʙᴀᴄᴋʙᴏɴᴇ ᴋɴᴏᴡɴ ᴀs ᴀ ᴠᴇʀᴛᴇʙʀᴀʟ ᴄᴏʟᴜᴍɴ. ᴛʜᴇʀᴇғᴏʀᴇ, ᴀʟʟ ᴄʜᴏʀᴅᴀᴛᴇs ᴀʀᴇ ɴᴏᴛ ᴠᴇʀᴛᴇʙʀᴀᴛᴇs ʙᴜᴛ ᴀʟʟ ᴠᴇʀᴛᴇʙʀᴀᴛᴇs ᴀʀᴇ ᴄʜᴏʀᴅᴀᴛᴇs.

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Answered by sowmyapallerla84

Explanation:

They both possess the common features a notochord, a dorsal hollow nerve cord, pharyngeal gill slits and post-anal tail. They further evolved where the notochord changed into the bony backbone known as a vertebral column. Therefore, all chordates are not vertebrates but all vertebrates are chordates

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