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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.
Define the Spatial processes? Environmental and integrative biology cuts across a wide array of spatial scales, and theoretical approaches that take into account these widely v
Why lymph is also called middle man of body
where does kreb cycle takes place
Why do few plants adapted to a dry environment open their stomata only at night? Throughout the day in dry habitats the guard cells become the stomata close and flaccid; concur
Explain Esterification The process of converting an acid into an alkyl or aryl derivative. Most frequently the process consists of the reaction of an acid with an alcohol in th
What is the typical morphological feature of nematodes that differentiates them from platyhelminthes? Nematodes are also called as roundworms. As the name shows they are not fl
The stepped steel shaft illustrated in Figure is subjected to a torque (T) at the free end and a torque (2T) in the opposite direction at the junction of the two sizes.
Enzymes are proteins that are catalysts of chemical reactions. From Chemistry, it is called that catalysts are non-consumable substances that decrease the activation energy essenti
Molecular Biology - transgenesis Difficult to successfully insert the gene then successfully re-implant embryo possible pleiotropic effects low success rate / tak
Explain the chemical properties of milk Autoclaving milk, wherein temperature of around 121 o C is achieved, causes browning. The brown colour is due to the heat effecting an i
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