The atomic mass of an element is 32.07 u and its atomic number is 16. the number of protons contained in the nucleus of an atom of this element is
(a) 16
(b) 31
(c) 32
(d) 48

Explain why scientists use shared characteristics to make cladograms.

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.

Animals that reproduce sexually either do it through external or internal fertilization. read the following statement and decide if it is true or false. birds reproduce through external reproduction which is because the female will then be able to protect the egg.