Protons and neutrons make electrons
Most of the amino acids found free in the cytoplasm come from diet.
Various amino acids are present in the pool of the cytoplasm which include both essential and non-essential amino acids. Essential amino acids are those that cannot be made by the body and must be obtained from food. Non-essential amino acids are those which the body can make on its own.
In the cytoplasm, the essential amino acids found in highest concentration are lysine, threonine, valine and leucine while of the non-essential, glutamine, glycine and alanine are found in higher concentration.
In a mutualistic relationship, both species benefit.
Predation is when a predator eats another organism, in which the predator benefits and the other organism dies.
In parasitism the parasite benefits while the host is harmed.
In competition, neither species benefits because they're too busy fighting over resources.
Commensalism is when only one of the two species benefits but the other is not harmed.
The thick layer of earth's surface is called the mantle.
Rotation<span> is when a planet or moon turns all the way around or spins on its axis one time. eg. A top that spind around its own axis or turning a screw.</span><span> </span>Revolution<span> is the movement of one object around a center or another object.</span>