Question

1. Write the functions of Stomata.
2. Difference b/w Arteries and Veins.
___________
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Answer 1

stomata helps in transpiration.

arteries-valves are present

veins-valves are absent

Answer 2

1

1 ᴛʜᴇ ᴍᴀɪɴ ғᴜɴᴄᴛɪᴏɴ ᴏғ sᴛᴏᴍᴀᴛᴀ ɪs ᴛᴏ ᴏᴘᴇɴ ᴀɴᴅ ᴊᴄʟᴏsᴇ ᴛʜᴇ ᴘᴏʀᴇs ɪɴ ᴛʜᴇ ʟᴇᴀᴠᴇs ғᴏʀ ᴀɴ ᴇxᴄʜᴀɴɢᴇ ᴏғ ɢᴀsᴇs.

2 ɪᴛ ᴀʟʟᴏᴡs ᴛʜᴇ ᴘʟᴀɴᴛ ᴛᴏ ᴛᴀᴋᴇ ɪɴ ᴄᴀʀʙᴏɴ ᴅɪᴏxɪᴅᴇ ᴀɴᴅ ɢɪᴠᴇ ᴏᴜᴛ ᴏxʏɢᴇɴ ғᴏʀ ᴘʜᴏᴛᴏsʏɴᴛʜᴇsɪs.

3 ʙᴀsᴇᴅ ᴏɴ ᴛʜᴇ ᴡᴇᴀᴛʜᴇʀ ᴄᴏɴᴅɪᴛɪᴏɴs, ɪᴛ ᴄʟᴏsᴇs ᴏʀ ᴏᴘᴇɴs ɪᴛs ᴘᴏʀᴇs ᴛᴏ ᴋᴇᴇᴘ ᴛʜᴇ ᴍᴏɪsᴛᴜʀᴇ ᴄᴏɴᴛᴇɴᴛ ᴅᴇᴠᴇʟᴏᴘᴇᴅ.

2

ᴏɴᴇ ᴏғ ᴛʜᴇ ᴍᴀᴊᴏʀ ᴅɪғғᴇʀᴇɴᴄᴇs ʙᴇᴛᴡᴇᴇɴ ᴀʀᴛᴇʀɪᴇs ᴀɴᴅ ᴠᴇɪɴs ɪs ᴛʜᴀᴛ ᴛʜᴇ ᴀʀᴛᴇʀɪᴇs ᴄᴀʀʀʏ ᴏxʏɢᴇɴᴀᴛᴇᴅ ʙʟᴏᴏᴅ ᴛᴏ ᴀʟʟ ʙᴏᴅʏ ᴘᴀʀᴛs, ᴡʜᴇʀᴇᴀs ᴠᴇɪɴs ᴄᴀʀʀʏ ᴛʜᴇ ᴅᴇᴏxʏɢᴇɴᴀᴛᴇᴅ ʙʟᴏᴏᴅ ᴛᴏ ᴛʜᴇ ʜᴇᴀʀᴛ.

ᴠᴇɪɴs ʜᴀᴠᴇ ᴀ ʀᴇʟᴀᴛɪᴠᴇʟʏ ᴛʜɪɴ ʟᴀʏᴇʀ ᴏғ sᴍᴏᴏᴛʜ ᴍᴜsᴄʟᴇ ɪɴ ᴛʜᴇ ᴡᴀʟʟ, ᴀɴᴅ ᴏғᴛᴇɴ ᴛʜᴇ ᴠᴇɪɴs ʜᴀᴠᴇ ᴀ ᴍɪssʜᴀᴘᴇɴ ᴏʀ ᴄᴏʟʟᴀᴘsᴇᴅ ʟᴏᴏᴋ, ᴡʜᴇʀᴇᴀs ᴀʀᴛᴇʀɪᴇs ᴍᴀɪɴᴛᴀɪɴ ᴀ ᴛɪɢʜᴛ ᴄʏʟɪɴᴅʀɪᴄᴀʟ sʜᴀᴘᴇ. ᴠᴇɪɴs ᴀʟsᴏ ʜᴀᴠᴇ ᴠᴀʟᴠᴇ ғʟᴀᴘs ᴛᴏ ᴋᴇᴇᴘ ᴛʜᴇ ʙʟᴏᴏᴅ ғʀᴏᴍ ᴍᴏᴠɪɴɢ ʙᴀᴄᴋᴡᴀʀᴅ ɪɴ ᴛʜᴇ ᴠᴇssᴇʟ. ᴛʜᴇsᴇ ᴠᴀʟᴠᴇs ʀᴇsᴇᴍʙʟᴇ ᴛʜᴇ sᴇᴍɪʟᴜɴᴀʀ ᴠᴀʟᴠᴇs ᴏғ ᴛʜᴇ ʜᴇᴀʀᴛ.