This trophoblast helps to implant the egg to the inside of the uterus. It begins to push its way into the uterine lining. Next, the trophoblast actually pulls the egg inside of the uterine wall. This trophoblast will then occupy your blood vessels and direct your blood to the fertilized egg.
Gravity, also called gravitation, is a force that exists among all material objects in the universe. For any two objects or particles having nonzero mass, the force of gravity tends to attract them toward each other. Gravity operates on objects of all sizes, from subatomic particles to clusters of galaxies.
The force of gravity is the force exerted by the gravitational field of a massive object on any body within the vicinity of its surface.This force is dependent on three factors: the mass of the massive object, the mass of the smaller body, and the separation between the two, measured between their geometrical centers. 1 = mass of the first object (lets assume itâs of the massive one). m 2 = mass of the second object (lets assume itâs of the smaller one). r = the separation between the two masses. Notice that the gravitational force is directly proportional to m 1.