Can you think of reasons why more complex organisms cannot give rise to new individuals through regeneration?
Why does menstruation occur?
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ᴀɴsᴡᴇʀ:
ᴄᴏᴍᴘʟᴇx ᴍᴜʟᴛɪᴄᴇʟʟᴜʟᴀʀ ᴏʀɢᴀɴɪsᴍs ᴄᴀɴɴᴏᴛ ɢɪᴠᴇ ʀɪsᴇ ᴛᴏ ɴᴇᴡ ᴏʀɢᴀɴɪsᴍ ʙᴇᴄᴀᴜsᴇ ᴛʜᴇ ᴛɪssᴜᴇ ᴀɴᴅ sᴘᴇᴄɪᴀʟɪsᴇᴅ ᴄᴇʟʟ ᴍᴀᴋᴇ ᴜᴘ ᴛʜᴇ ᴏʀɢᴀɴs ɪɴ ᴛʜᴇ ʙᴏᴅʏ. ... ᴏʀɢᴀɴɪsᴍs ᴀᴛ ʜɪɢʜᴇʀ ᴄᴏᴍᴘʟᴇx ʟᴇᴠᴇʟs ᴄᴀɴɴᴏᴛ ɢɪᴠᴇ ʀɪsᴇ ᴛᴏ ɴᴇᴡ ɪɴᴅɪᴠɪᴅᴜᴀʟs ᴛʜʀᴏᴜɢʜ ʀᴇɢᴇɴᴇʀᴀᴛɪᴏɴ ʙᴇᴄᴀᴜsᴇ ᴛʜᴇʏ ʜᴀᴠᴇ ᴏʀɢᴀɴɪᴢᴀᴛɪᴏɴ ᴏғ ᴛʜᴇɪʀ ᴏʀɢᴀɴs sʏsᴛᴇᴍ ᴀᴛ ᴅɪғғᴇʀᴇɴᴛ ʟᴇᴠᴇʟs.
ᴀ ᴘᴇʀɪᴏᴅ (ᴍᴇɴsᴛʀᴜᴀʟ ᴄʏᴄʟᴇ) ʜᴀᴘᴘᴇɴs ʙᴇᴄᴀᴜsᴇ ᴏғ ᴄʜᴀɴɢᴇs ɪɴ ʜᴏʀᴍᴏɴᴇs ɪɴ ᴛʜᴇ ʙᴏᴅʏ. ʜᴏʀᴍᴏɴᴇs ᴀʀᴇ ᴄʜᴇᴍɪᴄᴀʟ ᴍᴇssᴇɴɢᴇʀs. ᴛʜᴇ ᴏᴠᴀʀɪᴇs ʀᴇʟᴇᴀsᴇ ᴛʜᴇ ғᴇᴍᴀʟᴇ ʜᴏʀᴍᴏɴᴇs ᴇsᴛʀᴏɢᴇɴ ᴀɴᴅ ᴘʀᴏɢᴇsᴛᴇʀᴏɴᴇ . ᴛʜᴇsᴇ ʜᴏʀᴍᴏɴᴇs ᴄᴀᴜsᴇ ᴛʜᴇ ʟɪɴɪɴɢ ᴏғ ᴛʜᴇ ᴜᴛᴇʀᴜs (ᴏʀ ᴡᴏᴍʙ) ᴛᴏ ʙᴜɪʟᴅ ᴜᴘ.
ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘs :)
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