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In the preceding block you learnt the Darwinian premise of natural selection based on certain facts and deductions thereof. You would have noticed that one of the foundations for the concept of natural selection relates to competition among the individuals belonging to the same species - the intraspecific competition. You may also recall that intraspecific competition involves two components - (1) the individuals belonging to the same species compete among themselves for thc same requisites from the eilvironment which results in physical competition, including the competition for mates and the individuals belonging to a species may compete as to which of them leaves behind a major share of descendents in the future populations. The second type of competition is more subtle, by which is meant that individuals do not compete directly or in any physical way. The success of the second type of competition is measured in terms of the survival of offsprings, and therefore alleles in the next generation. You might have by now deduced that the two types of competition are interrelated. Success in the first type of competition known as ecological intraspecific competition is a prerequisite for success in the second type of competition namely reproductive intraspecific competition. It does not mean that ecological success always ensures reproductive success, for ecologically successful individuals may be sterile; but ecological success is always necessary to achieve reproductive success. We may then summarise that intraspecific competition results in adaptations to a given environment and this helps to perpetuate the genotypes of successful individuals generation after generation.
These labs discuss the principle of osmolarity, which is defined as the total number of solute particles in 1 L of solution. Is this the same thing as tonicity? Explain your answer
If due to some injury the chordae tendinae of the tricuspid valve of the human heart is partially non-functional, what will be the immediate effect? 1. The flow of blood into t
Minerals and reproduction The mechanism of mineral-reproduction interactions is not fully understood because of the complexity of neuro-hormonal dialogue. Some minerals act direc
Person X is a healthy human who has volunteered to take experimental drug Y. Person X has a normal dinner at 6 PM on April 1 and then does not eat for 12 hours. At 5 PM on A
skin derivates
Define Fats required for underweight - nutritional care? Fats: We know that fats are concentrated source of energy (lg = 9 Kcals). Fats are capable of increasing the energy val
An osteoclast is a type of bone cell that absorbs bone tissue by removing its mineralized matrix and breaking up the organic bone. This process is known as bone resorption
Explain the term Indirect Calorimetry? This method estimates energy expenditure by determining the oxygen consumption and carbon dioxide production of the body or a cell over a
What are the tupes of Aortic Aneurysm Surgery? Types of Surgery : Technique of surgery and the approach depends on the site of thoracic or thoraco abdominal aortic aneuiysm.
How do chloroplasts multiply? Like mitochondria chloroplasts have their own DNA, RNA and ribosomes and they self-replicate through binary division.
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