a. Draw the pyramids of biomass in a sea and in a forest. Explain giving
reasons why the two pyramids are different.
b. “Pyramid of energy is always upright.” Explain.
Answers
Answer:
Pyramid of energy is the only type of ecological pyramid, which is always upright because the energy flow in a food chain is always unidirectional. Also, with every increasing trophic level, some energy is lost into the environment and never goes back to the sun.
Explanation:
ᴀ. ᴛʜᴇ ᴘʏʀᴀᴍɪᴅ ᴏғ ʙɪᴏᴍᴀss ɪɴ sᴇᴀ ɪs ɪɴᴠᴇʀᴛᴇᴅ ʙᴇᴄᴀᴜsᴇ ᴛʜᴇ ʙɪᴏᴍᴀss ᴏғ ғɪsʜ ғᴀʀ ᴇxᴄᴇᴇᴅs ᴛʜᴀᴛ ᴏғ ᴘʜʏᴛᴏᴘʟᴀɴᴋᴛᴏɴ. ᴡʜᴇʀᴇᴀs ᴛʜᴇ ᴘʏʀᴀᴍɪᴅ ᴏғ ʙɪᴏᴍᴀss ɪɴ ᴀ ғᴏʀᴇsᴛ ᴇᴄᴏsʏsᴛᴇᴍ ɪs ᴜᴘʀɪɢʜᴛ, ʙᴇᴄᴀᴜsᴇ ᴛʜᴇ ʙɪᴏᴍᴀss ᴅᴇᴄʀᴇᴀsᴇs ᴀs ᴛʜᴇ ᴛʀᴏᴘʜɪᴄ ʟᴇᴠᴇʟ ɪɴᴄʀᴇᴀsᴇs.
ʙ. ᴘʏʀᴀᴍɪᴅ ᴏғ ᴇɴᴇʀɢʏ ɪs ɴᴇᴠᴇʀ ɪɴᴠᴇʀᴛᴇᴅ ʙᴇᴄᴀᴜsᴇ ᴡʜᴇɴ ᴇɴᴇʀɢʏ ғʟᴏᴡs ғʀᴏᴍ ᴀ ᴘᴀʀᴛɪᴄᴜʟᴀʀ ᴛʀᴏᴘʜɪᴄ ʟᴇᴠᴇʟ ᴛᴏ ᴛʜᴇ ɴᴇxᴛ ᴛʀᴏᴘʜɪᴄ ʟᴇᴠᴇʟ, sᴏᴍᴇ ᴇɴᴇʀɢʏ ɪs ᴀʟᴡᴀʏs ʟᴏsᴛ ᴀs ʜᴇᴀᴛ ᴀᴛ ᴇᴀᴄʜ sᴛᴇᴘ. ᴇᴀᴄʜ ʙᴀʀ ɪɴ ᴛʜᴇ ᴇɴᴇʀɢʏ ᴘʏʀᴀᴍɪᴅ ɪɴᴅɪᴄᴀᴛᴇs ᴛʜᴇ ᴀᴍᴏᴜɴᴛ ᴏғ ᴇɴᴇʀɢʏ ᴘʀᴇsᴇɴᴛ ᴀᴛ ᴇᴀᴄʜ ᴛʀᴏᴘʜɪᴄ ʟᴇᴠᴇʟ ᴀᴛ ᴀ ɢɪᴠᴇɴ ᴛɪᴍᴇ.
Note :- Refer to attachment