The time period was called the Hadean Eon, and the rocks themselves are nearly 4.4 billion years old
The cell<span> (from Latin cella, </span>meaning<span> "small room") is the basic structural, functional, and biological unit of all known living organisms. A </span>cell<span> is the smallest unit of life that can replicate independently, and </span>cells<span> are often called the "building blocks of life". The study of </span>cells<span> is called </span>cell<span> biology.</span>
The cell would be unable to get rid of its excess waste. The lysosome is an organelle specializing in getting rid of worn out things in the cell.
Answer: A). Active transport requires chemical energy to move nutrients from areas of low concentration to areas of high concentration.
Explanation:
Sometimes cells require nutrients such as sodium and potassium to be transported from an area where they are in low concentration to an area where they are in high concentration.
This goes against the concentration gradient where substances are transported from an area of high concentration to one with low concentration as is the case in processes such as osmosis.
This process is called Active transport and describes the use of chemical energy to move nutrients from areas of low concentration to areas of high concentration.
The blood circulatory system delivers nutrients and oxygen to all cells in the body. It consists of the heart and the blood vessels running through the entire body. The arteries carry blood away from the heart; the veins carry it back to the heart
