Answer:
The two main processes of cell division, meiosis and mitosis, have in common their main steps. In both cases the metaphase ( pairing of homologous chromosomes), anaphase (migration of chromosomes to the ends) and telophase (beginning of DNA decondensation and cell division) are very similar.
The greatest difference occurs in prophase I of the meiosis, which involves the process of recombination (cross over), resulting in variability in the gametes.
Another difference is that meiosis is a reductional process, where the final result of meiosis will be gamens with half of the genetic information, and in mitosis both cells will be equal.
Newton's universal law of gravitation states that all objects attract each other with a force directly proportional to their masses and inversely proportional to the square of the distance between their centers. When considering objects on the surface of the Earth, the force is directly proportional to the product of the mass of the object and the acceleration due to gravity at the Earth's surface. Since the Earth is larger than any other object under consideration, the object is drawn toward the Earth.
Explanation:
The magnitude of the gravitational force between two objects is given by Newton's universal law of gravitation:
where
:
is the gravitational constant
m1, m2 are the masses of the two objects
r is the separation between them
This force is always attractive.
At the Earth's surface, this can be rewritten as

with
where M is the mass of the Earth, R is its radius, and m the mass of the object.
g is called acceleration due to gravity and it is the value of the acceleration due to the force of gravity of any object near the Earth's surface (its value is approximately
. Since the Earth is much more massive than any other object, the object is attracted towards the Earth (so, it accelerates towards it); the Earth is also attracted by the object, however, being its mass so large, its acceleration is negligible.
Learn more about gravitational force:
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The principal advantage of asexual reproduction is that the organism does not have to waste time or energy looking for a mate.
<span>They bind messenger RNA and transfer RNA to synthesize polypeptides and proteins.</span>