| Author | Message | ||
     Pure Emotion Username: 991160 Registered: 04-2003 |
i want to ask a question about food pyramid.. why some pyramids are inverted...? i don't understand the explainations in book... | ||
| Ho Shun Chuen Username: hsc Registered: 04-2003 |
Dear pure emotion, In some situation,e.g. an oak tree is very big it can support twenty caterpillars to live in it. For the pyramids of number, the first trophic level is oak tree and the second tropjic level is caterpillars, the prymaid of no. will be 20/1 so it is inverted. | ||
| 991150 Username: 991150 Registered: 04-2003 |
who can give the correct answers for questions #1,2,7,56 of the Bio (2) (HKCEE)this year? |