.Mention the disadvantages of external fertilization
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❤. The chances of syngamy are less.
❤. The chances of survival of offspring or much less as :
they are extremely vulnerable to predators, which threaten their survival up to adulthood.
they are also exposed to harsh by mental conditions.
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❤. The chances of syngamy are less.
❤. The chances of survival of offspring or much less as :
they are extremely vulnerable to predators, which threaten their survival up to adulthood.
they are also exposed to harsh by mental conditions.
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Answer:
ᴇxᴛᴇʀɴᴀʟ ꜰᴇʀᴛɪʟɪᴢᴀᴛɪᴏɴ ɪꜱ ᴀ ᴍᴏᴅᴇ ᴏꜰ ʀᴇᴘʀᴏᴅᴜᴄᴛɪᴏɴ ᴄʜᴀʀᴀᴄᴛᴇʀɪᴢᴇᴅ ʙʏ ᴛʜᴇ ꜰᴇʀᴛɪʟɪᴢᴀᴛɪᴏɴ ᴏꜰ ᴍᴀʟᴇ ᴀɴᴅ ꜰᴇᴍᴀʟᴇ ɢᴀᴍᴇᴛᴇꜱ ᴏᴜᴛꜱɪᴅᴇ ᴛʜᴇ ʙᴏᴅʏ ᴏꜰ ᴛʜᴇ ᴏʀɢᴀɴɪꜱᴍꜱ. ᴇxᴛᴇʀɴᴀʟ ꜰᴇʀᴛɪʟɪᴢᴀᴛɪᴏɴ ɪꜱ ᴏʙꜱᴇʀᴠᴇᴅ ɪɴ ᴀᴍᴘʜɪʙɪᴀɴꜱ ꜱᴜᴄʜ ᴀꜱ ꜰʀᴏɢꜱ ᴀɴᴅ ᴛᴏᴀᴅꜱ. ʜᴏᴡᴇᴠᴇʀ, ᴛʜᴇʀᴇ ᴀʀᴇ ᴀ ꜰᴇᴡ ᴅʀᴀᴡʙᴀᴄᴋꜱ ᴏꜰ ᴇxᴛᴇʀɴᴀʟ ꜰᴇʀᴛɪʟɪᴢᴀᴛɪᴏɴ:
- ᴛʜᴇ ᴄʜᴀɴᴄᴇꜱ ᴏꜰ ꜱᴜʀᴠɪᴠᴀʟ ᴏꜰ ᴛʜᴇ ɢᴀᴍᴇᴛᴇꜱ ᴀʀᴇ ᴠᴇʀʏ ʟᴇꜱꜱ.
- ɴᴏᴛ ᴀʟʟ ᴛʜᴇ ɢᴀᴍᴇᴛᴇꜱ ᴀʀᴇ ꜰᴇʀᴛɪʟɪᴢᴇᴅ.
- ᴛʜᴇ ɢᴀᴍᴇᴛᴇꜱ ᴍɪɢʜᴛ ᴅᴇꜱɪᴄᴄᴀᴛᴇ.
- ᴛʜᴇ ᴘʀᴇᴅᴀᴛᴏʀꜱ ᴜꜱᴜᴀʟʟʏ ᴇᴀᴛ ᴛʜᴇ ᴇɢɢꜱ.
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