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  1. If plants do not have chlorophyll, either they can absorb nutrients from dead organic matter (saprophytic), or they can like human consume other live small ...

    分類:科學及數學 > 生物學 2006年10月29日

  2. .... As there is high annual litter fall, so there is more nutrient in the soil. But if you just focous in the nutrient cycle in TRF...

    分類:科學及數學 > 地理學 2006年10月20日

  3. ... of biomass. 2.) Why do living organisms need nutrients ? Organisms need nutrients for growth, repair and prevent diseases...

    分類:科學及數學 > 生物學 2008年08月23日

  4. ... with many pores (sieve plate) => to enhance the trasport of organic nutrients from cell to cells Seive tube cells have cytoplasm without nucleus... ...

    分類:科學及數學 > 生物學 2012年04月18日

  5. ...physical barriers, sunlight, water, temperature, and soil. A limiting nutrient is a chemical (nutrient) necessary for plant growth, but available in a ...

    分類:科學及數學 > 生物學 2007年03月12日

  6. ...the use of the land; 2. Different crops take away different type of nutrients from the soil which can be replenished by another crop, and if a carefully ...

  7. 1. Eat a variety of nutrient-rich foods. You need more than 40 different nutrients for good...

  8. ... the optimal health are: 1) Good diet, definately enough nutrients each day... do we need to suppliment mutivita mins? depends on how good...

  9. ...undernutrition resulting from inadequate consumption, poor absorption, or excessive loss of nutrients, but the term can also encompass overnutrition, ...

  10. 1.唔知wor~~~~ 2.They need to digest as food because they need more nutrient.If they only make food by themselves,they can not absorb enough nutrients... ...

    分類:環境 > 其他 - 環境 2007年11月15日