During the process of biological the concentration of pollutants, such as ddt or mercury, is multiplied as it passes up a food chain.

Donde se encuentra el adn nuclear en un organismo eucariota?

When a human or animal consumes food, the carbon in that food is most likely to be converted into which of the following elements? a. carbon remains carbon b. nitrogen c. oxygen d. hydrogen

Can someone i have no idea of how to do this.