The general term used to describe elevated levels of cholesterol and other fatty substances in the blood is

Hyperlipidemia

Explanation:

The high cholesterol also refers to as Hyperlipidemia. The increase in level of fatty substances, cholesterol and triglycerides in blood is called hyperlipidemia. There are two types of lipoproteins that are HDL (high density lipoprotein) and LDL (low density lipoprotein). The excess HDL reaches liver and thus excreted. So, HDL is good for body but LDL is bad fat. The increased LDL in body causes hyperlipidemia. The increase LDL can lead to heart attack.

Thus, the general term used to describe elevated levels of cholesterol and other fatty substances in the blood is Hyperlipidemia.

The pattern of the flow of energy in the ecosystem take place in an unidirectional pattern. In the ecosystem, unidirectional pattern of energy flow should be present, following the law of thermodynamics which states that the amount of energy in the universe is constant. It cannot be created or destroyed, however, it may be changed into another form of energy. Example: chemical to heat. The law also says that without degradation into heat energy, non-random energies like mechanical, chemical or radiant energy cannot be changed.