Answer:
Diaphragm is the large band of muscle that controls the size of the chest cavity. Lungs are the two large lightweight organs of the body.Explanation:
Explanation:
<u>the Paleozoic Era </u>
The Precambrian era describes a period of time that pre-dates Cambrian. This time typically references the entire period of the history of earth before the formation of rocks containing identifiable fossils occurred. It covers the majority of Earth’s history and is divided into the Hadean, Archean and the Proterozoic era.
Just before the Cambrian eruption, in the Paleozoic Era the environment was oxygenated, culminating in an explosion of new life in the Proteozoic Eon (2500-541 million years ago) in the form of primitive blue-green algae named cyanobacteria and oxygen based species. Multicellular species followed later, along with structure at higher levels, and complex life. Oxygen levels grew gradually over this period of time, from low levels.
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Answer:
Harmful to the existing habitat and inhabitants
Foreign
Fast reproduction rate
Water is not a very good solvent it not applies to the water.
Answer:
The stem cells possess two cardinal characteristics, that is, self-renewal and differentiation. The examples are embryonic stem cells and hematopoietic stem cells. The genetically determined immunodeficiency in a person is generally a result of the defective gene in the hematopoietic stem cells that produce red blood cells, white blood cells, and other components of blood.
The examples of genetically determined immunodeficiency diseases are SCID, X-linked Agammaglobulinemia, and others. The individual suffering from genetically determined immunodeficiency exhibits a defective gene in hematopoietic stem cells. There are two methods of treatment, that is, stem cell therapy and gene therapy.
The procedure of stem cell transplantation generally comprises HLA matching, in which the main step is to prevent graft rejection. It is succeeded by harvesting of hematopoietic stem cells from the HLA matched donor. The step of conditioning is performed to eradicate the recipient HSCs by radiotherapy and chemotherapy succeeded by the transfer of harvested donor HSCs to the patient or the recipient.
A person cannot receive his own stem cells as his or her each and every cell is defective in that specific gene accountable for the disease.
