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The effect of natural selection on colonies or population favouring one group in preference to other may be referred to as group selection. A group can be the smallest collection of individuals within a population or a colony. Group selection, it must be understood, is distinct from selection among individuals. The fitness of the genotypes between groups may vary within a population. The concept of altruism can be extended to groups as well. A colony consisting of many altruists has better chances of survival than a colony consisting of selfish individuals. Let us take hypothetical situatioii where individuals of a colony, reproduce indiscriminately having no regard for the carrying capacity of the environment. On the other hand, consider a colony of individuals with genes restricting population growth, utilising optimally the food sources of the environment. The selection would essentially favour the latter group and the former may eventually face extinction.
What are some examples of organs and tissues where mitosis is more frequent, less frequent or practically absent? Generally in vertebrates mitosis is more frequent in a tissue
How different is the growth according to the biotic potential of a viral population from the growth according to the biotic potential of a bacterial population? The growth cur
CLOSED HEART SURGERY : Operative procedures on the heart or major intra thoracic vessels done when the heart is beating and supporting effective circulation come under the ca
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Proteins are very essential macromolecules as they have a range of many important functions like: • Required for building and repair of body tissues (including muscle) • Enzy
locomotion in protozoa
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In a cohort study that found an association between alcohol consumption and bladder cancer, 20,000 middle-aged men were asked about their drinking habits and then tracked for five
What are the lateral meristems? Where can they be found and which kind of plant growth do they promote? The Lateral or the secondary, meristems, are the cambium and the phellog
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