Living things has emerged into three domains called Archaea, bacteria, and eukaryotes. Evident that support the idea that multi cellular that is eukaryotic cell evolved from the prokaryotic cell are the descendents of the separate prokaryotic cells that together form a union which are inter dependent.
For example: The mitochondria which is referred to the energy source of the cell is considered as the great-great-great-granddaughter of a bacterium cell which is free living. This free living bacterium bacterial cell was consumed by an other cell and this remained as the stable guest in the cell. This mitochondria provided chemical energy to the cell and also protected the nutrient rich environment. which surrounds it. This process of one organism residing in the other organism completely is called endosymbiosis.
The skin has only 2 layers—epidermis and dermis. Hypodermis, if that’s what you have in mind as the third, isn’t considered part of the skin.
The epidermis is a barrier to infection, trauma, and water loss (dehydration); it’s important to our social interactions; and it’s the body’s largest sense organ. The dermis provides toughness and resistance to mechanical stress; provides blood vessels that come close to the epidermis and nourish it (but don’t enter it); contains a variety of sensory receptors for touch, heat, cold, pressure, and vibration; and is an arena of immune defense in which white blood cells can rally at a site of infection and fight off intruders.
791 viewsView upvotes
5
3
Related answers
Related Answer
Profile photo for Judith Mcqueen
Judith Mcqueen
, former Theatre Tech at Manchester Royal Infirmary (1986-1990)
Answered Jan 16,
DNA or RNA surrounded by a protein coat
Confidentiality and privacy in health care system is very important. All the medical records and information about the patient's medication and diseases concerned should be kept secret. By law of any nation, this is extremely important.
It is understandable to keep the medical records and history of Vivian Armand tests and lab reports secret because as per law the medical professionals and nurses should keep the information private.
Keeping secrecy of medical records is advantageous because it is the right an individual to have his/her health records to be private. If by any means it is found that the privacy has been compromised by any health care professional, it should be reported to the doctor.