About how many cells are present in our bodies?
1 million
4 billion
60 trillion
scientists cannot measure the number of cells

How many molecules of sucrose c12h22o11 are there in 454 grams of sucrose

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.