The correct answer is E. A cell
Explanation:
The cell is the smallest unit of life that exists and that constitutes all living organisms and body tissues including unicellular and multicellular organisms. Due to this, cells are considered as the fundamental unit of life as even the smallest and simplest living organisms are made of cells or at least made of one cell.
Cells are commonly made up of three main parts: the cell membrane which surrounds the cell and controls the substances that enter and leave it; the nucleus which is the structure within the cell that contains the nucleolus and most of the cell's DNA; and the cytoplasm that is the fluid inside the cell that contains other tiny cell particles with specific functions, such as the Golgi apparatus, mitochondria, and the endoplasmic reticulum. This applies to all cells except to prokaryotic cells because these do not contain a nucleus but a chromosome in the middle of the cell.
The theory of evolution look it up and thats where you will get your anwser
The plateau portion of the action potential in contractile cardiac muscle cells is due to the <u>membrane potential remaining almost constant</u>.
As the membrane gradually repolarizes This will be brought on by the nearly equal movement of charge into as well as outside of the cell.
As a result of this activity, the action potential reaches a plateau because a significant amount of calcium and sodium ions are transported through these channels towards the interior of such cardiac muscle fiber.
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Plants release oxygen through the process of photosynthesis which helps the animals for respiration. They also maintain the balance of oxygen and carbon dioxide in the atmosphere. That is why the forests are called green lungs.
Answer:
System in which the people as a whole rather than private individuals own all property and operate all businesses
