The esophagus is a muscular<span> tube connecting the throat (</span>pharynx<span>) with the stomach. The esophagus is about 8 inches long, and is lined by moist pink tissue called </span>mucosa. The esophagus runs behind the windpipe (trachea<span>) and heart, and in front of the spine.
</span>
Cell is the structural and functional unit of life. It has various components that are important for its survival such as plasma membrane, mitochondria, endoplasmic membrane, nucleus, golgi body, etc.
Answer: At a minimum, for a cell to be alive, it must contain the following organelles:
1. Plasma membrane: It is the covering of the cell that is selectively permeable.
2. Nucleus: It contains genetic material which is important for DNA replication.
3. Mitochondria: It is the power house of the cell that synthesizes ATP.
Lipids are active transport since they are used to store energy, long term.
The height of an object or point in relation to sea level or ground level .
hope this helps !
Addition polymerisation???
