Help any science or biology lovers!

Donde se encuentra el adn nuclear en un organismo eucariota?

If animal agriculture was eliminated, how much grain would become available for human consumption?

Which statement is the best summary of the model? a-a series of aerobic and anaerobic reactions take place in cells b- the sun's energy moves through trophic levels in a food chain c-light energy is converted into stored chemical energy plants.d- food molecules are broken down in the cells if living things.