Because plant cells have chloroplasts and can do photosynthesis, why do they also need mitochondria

Donde se encuentra el adn nuclear en un organismo eucariota?

Is there any solid scientific evidence that humans have been cloned?

Easy 6th grade work! 100 points! i need fast! compare the parts of a cell and the cell as a whole to another common nonliving system (i.e., a car, a city, describe the parts of a cell and their primary function.