Question

why are more number of stomata typically located on the ventral side of a leaf ?​

Answer 1

Answer:

All surfaces of the leaf have some amount of stomata for regulating gas exchange for photosynthesis. However, the lower epidermis (the underside of the leaf) has more, because it is more often in the shade and so it is cooler, which means evaporation won't take place as much.....

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Answer 2

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ᴛʜᴇ ᴇᴠᴀᴘᴏʀᴀᴛɪᴏɴ ᴏғ ᴡᴀᴛᴇʀ ғʀᴏᴍ ᴛʜᴇ ʟᴇᴀғ ɪs ᴄᴀʟʟᴇᴅ ᴛʀᴀɴsᴘɪʀᴀᴛɪᴏɴ. ᴛʜᴇ ɴᴜᴍʙᴇʀ ᴏғ sᴛᴏᴍᴀᴛᴀ ᴏɴ ʟᴇᴀғ sᴜʀғᴀᴄᴇs ᴠᴀʀɪᴇs ᴡɪᴅᴇʟʏ ᴀᴍᴏɴɢ ᴅɪғғᴇʀᴇɴᴛ sᴘᴇᴄɪᴇs ᴏғ ᴘʟᴀɴᴛs. ᴛʜᴇ ʟᴏᴡᴇʀ ᴇᴘɪᴅᴇʀᴍɪs ᴏғ ᴛʜᴇ ʟᴇᴀғ ᴛᴇɴᴅs ᴛᴏ ʜᴀᴠᴇ ᴀ ʜɪɢʜᴇʀ ᴛᴏᴛᴀʟ ᴛʜᴀɴ ᴛʜᴇ ᴜᴘᴘᴇʀ sᴜʀғᴀᴄᴇ.