Question

1.       New plants grow from both spores and seeds .  What are the differences between spore and seed ?          

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Answer 1

Answer:

The main difference between spores and seeds as dispersal units is that spores are unicellular, the first cell of a gametophyte, while seeds contain within them a developing embryo (the multicellular sporophyte of the next generation), produced by the fusion of the male gamete of the pollen tube with the female gamete .

Answer 2

• ᴅɪғғᴇʀᴇɴᴄᴇ ʙᴇᴛᴡᴇᴇɴ sᴘᴏʀᴇs ᴀɴᴅ sᴇᴇᴅs ᴀs ᴅɪsᴘᴇʀsᴀʟ ᴜɴɪᴛs ɪs ᴛʜᴀᴛ sᴘᴏʀᴇs ᴀʀᴇ ᴜɴɪᴄᴇʟʟᴜʟᴀʀ, ᴛʜᴇ ғɪʀsᴛ ᴄᴇʟʟ ᴏғ ᴀ ɢᴀᴍᴇᴛᴏᴘʜʏᴛᴇ, ᴡʜɪʟᴇ sᴇᴇᴅs ᴄᴏɴᴛᴀɪɴ ᴡɪᴛʜɪɴ ᴛʜᴇᴍ ᴀ ᴅᴇᴠᴇʟᴏᴘɪɴɢ ᴇᴍʙʀʏᴏ (ᴛʜᴇ ᴍᴜʟᴛɪᴄᴇʟʟᴜʟᴀʀ sᴘᴏʀᴏᴘʜʏᴛᴇ ᴏғ ᴛʜᴇ ɴᴇxᴛ ɢᴇɴᴇʀᴀᴛɪᴏɴ), ᴘʀᴏᴅᴜᴄᴇᴅ ʙʏ ᴛʜᴇ ғᴜsɪᴏɴ ᴏғ ᴛʜᴇ ᴍᴀʟᴇ ɢᴀᴍᴇᴛᴇ ᴏғ ᴛʜᴇ ᴘᴏʟʟᴇɴ ᴛᴜʙᴇ ᴡɪᴛʜ ᴛʜᴇ ғᴇᴍᴀʟᴇ ɢᴀᴍᴇᴛᴇ...