Question

Frog and fishes lay hundreds of egg at a time. why do you think thy must lay so many eggs?





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Answer 1

Yes, it is necessary for frogs and fishes to lay large number of eggs because they are exposed to the external environment that may destroy many eggs. Hence, laying eggs in a large number promote fertilisation and also increase the chances of survival of at least few of the fertilised eggs.

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Answer 2

ᴄᴏᴍᴘᴀʀᴇᴅ ᴛᴏ ʜᴇɴs, ғɪsʜ ᴀɴᴅ ғʀᴏɢs ʟᴀʏ ʜᴜɴᴅʀᴇᴅs ᴏғ ᴇɢɢs ʙᴇᴄᴀᴜsᴇ: - ɪɴ ғɪsʜ ᴀɴᴅ ғʀᴏɢs, ᴇxᴛᴇʀɴᴀʟ ғᴇʀᴛɪʟɪᴢᴀᴛɪᴏɴ ᴏᴄᴄᴜʀs. ... ᴛʜᴇʀᴇғᴏʀᴇ, ᴀ ʟᴀʀɢᴇ ɴᴜᴍʙᴇʀ ᴏғ ɢᴀᴍᴇᴛᴇs ɪɴ ᴛʜᴇsᴇ sᴘᴇᴄɪᴇs ᴀʀᴇ ᴘʀᴏᴅᴜᴄᴇᴅ ᴛᴏ ɪɴᴄʀᴇᴀsᴇ ᴛʜᴇ ᴄʜᴀɴᴄᴇs ᴏғ ғᴇʀᴛɪʟɪᴢᴀᴛɪᴏɴ.