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38. NATURAL SELECTION - Coggle Diagram
38. NATURAL SELECTION
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SELECTION PRESSURES
SELECTION PRESSURES ARE EXTERNAL AGENTS WHICH AFFECT AN ORGANISM'S ABILITY TO SURVIVE IN AN ENVIRONMENT
DENSITY-DEPENDENT FACTORS INCLUDE PREDATORS, NUTRIENTS, SHELTER AND DISEASES
DENSITY-INDEPENDENT FACTORS ARE THE ABIOTIC CONDITIONS SUCH AS WEATHER, HIGH OR LOW TEMPERATURE AND NATURAL DISASTERS
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SEXUAL SELECTION
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FOR EXAMPLE, MALE BIRDS OF PARADISE HAVE A BRIGHT PLUMAGE AND INTRICATE COURTSHIP BEHAVIORS TO ATTRACT MATES
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ARTIFICIAL SELECTION
SELECTIVE BREEDING OF CROP PLANTS HAS ALLOWED FOR THE GENERATION OF NEW TYPES OF FOOD FROM THE SAME SOURCE
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UNINTENDED CONSEQUENCES OF HUMAN ACTIONS, SUCH AS RESISTANCE IN BACTERIA WITH ANTIBIOTICS IS DUE TO NATURAL SELECTION
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GENE POOL & EVOLUTION
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ACCORDING TO NEO-DARWINISM, EVOLUTION IS A CHANGE IN THE FREQUENCY OF ALLELES IN THE GENE POOL
HARDY-WEINBERG PRINCIPLE
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IF THESE FREQUENCIES ARE NOT MET FOR A POPULATION, ONE OR MORE CONDITIONS IS NOT BEING MET
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ADAPTATION & FITNESS
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DURING INTRASPECIFIC COMPETITION, THE FITTEST SPECIES, TENDS TO SURVIVE PASSING ITS GENES TO THE NEXT GENERATION
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