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Elaborate Evolution by Natural Selection ?
The conelaboratecept of natural selection lies at the heart of Darwin's Theory of Evolution. Darwin understood that plants and animals being raised for food or show in his day were selectively bred, or artificially selected for certain valued traits. Darwin came to understand that environmental factors such as predators, food supply, physical habitat, and climate functioned in much the same way to select and favor specific characteristics or traits. Those organisms within a population that could effectively reproduce in a given environment would be able to reproduce effectively.
Evolution might have occurred as described in the example below. Genetic recombination leads to variation among the individuals of any population, in this case, in the neck length in a population of giraffes. In a changing environment, food resources is consumed in order of accessibility. As food becomes scarce, most giraffes suffer from poor health, or starvation. However, giraffes with longer than normal necks are able to reach more food, and have an advantage in surviving to produce offspring, who are genetically likely to be longer necked as well. Over time, by natural selection, the population evolves into one of longer necked giraffes.
TER A T OGEN S - These are chemicals or drugs causing malformed foetus . The production of monsters or malformed foetus is called tertogeny or teratogenesis . Th
Respiratory system of Crustacea ?
There has been a perfect coevolution between plants and herbivorous animals. This has often developed into a mutually beneficial relationship. Whereas the plants have proved to be
Mechanisms of Neural Plate Formation You are familiar with the concept that the neurulation comprises of two processes i) The neural plate formation and ii) The neural t
Some foods are better able to resist changes in pH than others. These tend to resist changes in pH since these are buffered and the ability to resist changes in pH is known as bu
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A)Which of the following statements about DNA structure is true? 1.The nucleic acid strands in a DNA molecule are oriented ant parallel to each other, meaning they run in opposite
Define Mineral Trioxide Aggregate - Materials for Root End Filling Widely used Favorable biocompatibility Superior sealing qualities when compared to S-EBA and am
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