White Blood cells Because they are produced in your body and they are constantly used more than they are replaced
A food chain follows one path of energy and materials between species. A food web is more complex and is a whole system of connected food chains. In a food web, organisms are placed into different trophic levels. ... Producers are the basic trophic level while top predators are the peak level.
Animal cells do not contain chloroplasts
our mitochondria only gathers energy from the food we eat not the warmth we absorb from the sun.
