Question

At a birthday party,every child gets 2chocolates ,every mother gets 1chocolate, while no father gets a chocolate,In total 69 persons get 70 chocolates. If the number of children is half of the number of mothers and fathers ,then how many fathers are there.

Answer 1

Give an example of a food chain and state the different trophic levels in it.Trophic level is the functional leveloccupied by an organism in a food chain. Examples the first trophic levelis occupied by producers or the autotrophs which fix solar energy and prepare food.