Biology, asked by voney5545, 10 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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