1. Daniel Vega Humberto Escoto

2.  In biology, the nutrient cycle is a concept that describes how nutrients move from the physical environment into living organisms, and subsequently are recycled back to the physical environment.

4.  Micronutrients are nutrients required by humans and other organisms throughout life in small quantities.

6.  Macronutrients are nutrients required by humans and other organisms throughout life but in big quantities.

9.  A limiting factor or limiting resource is a factor that controls a process, such as organism growth or species population, size, or distribution.

10. Carnivores Herbivores Plants Nutrients

11.  This term, is based on the bottom-top model.

12.  Carbon is not a nutrients for plants all carbon use by plants to form sugar, stratches, cellulouse, etc.

13.  nitrogen is the main limiting nutrient in saltwater environments.

14.  The typical limiting nutrient is Phosphorus(P).

15.  Fertilizer contains nutrients that help crops grow, but not all of the nutrients (like nitrogen and phosphorus) are used by the crops. The ground water collects these leftover nutrients and carries them into large water bodies, these ecosystems have a natural equilibrium.

16. Lake Water-Quality Classification

17.  (of a lake or pond) having low levels of nutrients and high levels of dissolved oxygen.

19.  Mesotrophic is a body of water,having a moderate amount of dissolved nutrients.

21.  It is a process when a body of water gets an abundant supply of nutrients by excessive organic matters, sewage, or fertilizers and consequently stimulates huge algal growth.

23.  The quantities of nitrogen, phosphorus, and other biologically useful nutrients are the primary determinants of a lake's trophic state.

25.  THANK-YOU