Consider the circle elements in the periodic table. based on their location ,we could infer that most of them are

What must happen before a body cell can begin mitotic cell division

The is a particle with one unit of positive charge a. proton b. positron c. electron d. nucleus awnser quick it is a important science test!

Why is it possible for different microorganisms to extract energy not only from carbohydrates and other biological molecules but from a large variety of substances?