The number of producers is more than consumers and top carnivores in ecosystem. for example:- in the food chain of grass--goat--man,atleast 90% of energy is pasted to other level and 10% will be stored at that level it self.
grass goat man
50/100 40/80 30/60.
as we human beings depend on plants and animals for our food for our whole life we need atleast 100 numbers of small plants for one week.
We have food water and air. We also have shelter.
Food,Water,Shelter,Air is the answer.
Crossing over gives the offspring sort of a genetic variation twist. This will mix our two genes and make them diverse, but together.
