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Body Fluids – Circulation
Many sorts of evidences have led biologists to the conclusion that life had its origin in the ancient seas. It is not surprising, therefore, that the protoplasm of early organisms had many properties in common, with seawater that bathed them, and that ' life processes evolved a close dependence on the stable conditions existing in seawater.
Figure: Fluid compartments of the body. All exchanges with the environment occur across plasma.
The evolution of multicellular animals involved the development of body fluids - tissue fluids, blood and lymph that could provide all body cells with a stable .and relatively non-fluctuating environment, and fill all spaces between cells and cell layers. The body fluids are divided into two main phases intracellular and extracellular. The extracellular fluid is further subdivided into blood plasma and interstitial fluid. The blood plasma is contained in blood vessels and interstitial fluid fills the spaces around the cells. Nutrients and gases passing between blood vessels and cells have to cross this fluid. The interstitial fluid is formed constantly by filtration from the blood plasma through the capillary walls.
Explain about the Conjugated proteins? The phospho proteins and the metallo proteins are loose (as with phosphate carrying protein) or tight (as with the phosphate in casein or
Metamerism oe Segmentation In the early coelomates the coelom was not divided into segments, the whole body cavity was a single space. Hence body movements were not precise.
Cryopreseravtion of gametes , embryos or DNA segments can be quite an effective and safe approach for breeds or strains whose populations are too small to be conserved by any other
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Explain in sequence the events that lead to the development of a 3-celled pollen grain from microspores mother cell in angiosperms.
Design a controlled experiment to test the hypothesis that acid precipitate inhibits the growth of elodea, a common freshwater plant.
Q. Signs of constrictive pericarditis? 1) Jugular venous pressure (JVP) is elevated in all patients of CP which reflects the elevated diastolic pressure of the right atrium.
What are genetic mutations? The Genetic mutations are alterations of the genetic material (compared to the normal condition of the species) involving modifications in the norma
The first ever australopithecine fossil was found in 1924 at Taung, South Africa. It was the skull of a 6 year old child showing a mixture of human and ape like features. This a
The use and transfer of energy in all cells involves same compound, ATP. The letters ATP stand for chemical: a) Adenosine triphosphate b) Aluminum trioxide c) Atrophine t
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