Facilitated diffusion is the process of spontaneous passive transport of molecules or ions across a biological membrane via specific transmembrane integral proteins.
The solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. This process is called passive transport or facilitated diffusion, and does not require energy.
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Answer:
Fossils are the greatest and simplest evidence of the presence of the organisms that existed many years ago.
Deoxyribo Nucleic Acid (DNA) is called as “coil of life.” According to the Darwin’s theory about 8 percent of human genome is made up from viral DNA which a person has accumulated through infections and diseases.
The case studies helps in figuring out the total evolution of species and organisms.
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<em>Fossil Records
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But now Fossils are the feces and the footprints of the organisms which confirm the presence of an organism which are now extinct or rare to find.
<em>DNA evidence
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DNA of an organism has sequences which mutate over a period of time and results in changes in organism’s genetics which later on evolve into new specie. Hence, the DNAs help to find the ancestors of the organism and also figure out the organism specifically related to. The process of study of evolution is known as Phylogenetics.
<em>Case Studies
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The finch of Galapagos of Darwin’s is one of such example of evolution. The Galapagos Island helped in finding out the evolution occurred when the finches were secluded due to the geographical barriers.
<span>A nurse a professional with many duties, one she has the knowledge necessary to understand what is going on in medical situations, and report those plainly and accurately. Secondly, the nurse is responsible for communicating with family members more so than the primary physician or surgeon. This give the nurse a better ability to connect and talk with people in stressful situations.</span>
Answer:
A few organisms can live in a dormant and desiccated state for lengthy periods of time but require water to become active. Water is present both inside and outside of cells. In the body of a mammal for example, although it is about 70% water by weight, about 46% (approximately 2/3) is inside cells, and about 23% (approx.
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