The Miller-Urey experiment showed that simple molecules could have arisen abiotically. This chemical experiment included conditions similar to those present on the early Earth, and tested the origin of life under those conditions.
Water (H2O), methane (CH4), ammonia (NH3) and hydrogen (H2) were the chemicals used to produce the results of the experiment, the factors needed for simple life to arise. Given similar conditions on other planets, it's possible that life could arise there as well.
DNA can be transferred naturally between species by breeding.
The tissue type found in kidney glomeruli and corpuscles; air sacs of lungs; the lining of the heart, blood vessels, and lymphatic vessels; and the lining of serosae is simple squamous epithelium.
Lymphatic vessels are the large network of tubes that carry the lymph fluid from different parts of the body. These vessels are also involved in the transport of immune cells. The vessels are composed of a thin layer of smooth muscle, and adventitia that helps in binding of vessels to the surrounding tissue.
Simple squamous epithelium tissues consist of a single layer of flattened cells. This structure makes the tissue relevant for structures like air sacs of lungs or the lining of the heart, therefore to make the transport process easier.
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