Water evaporates and comes down as rain thats how the water cycle works and the carbon cycle works by oxygen being turned into carbon by humans and animals breathing and trees convert carbon back into oxygen so the cycle goes on and on
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An earthquake hits a small island. All but a few individuals of a lizard species are eliminated in this catastrophe, and an allele is lost from the population. This is an instance of the bottleneck effect.
Natural events like an earthquake catastrophe which eliminates, by chance, a large number of individuals of a population, can amplify the phenomenon of genetic drift. It is termed as the bottleneck effect. It leads to the elimination of a large part of the genome abruptly.
Immediately, the survivors' genetic composition becomes the whole population's genetic composition, which might be very distinct from the population that existed before the catastrophe.
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You would draw a four by four punnett square. On top, your genotypes are the father's. Across: BL bL BL bL Down: BL Bl BL Bl
Genotypes Phenotypes
BBLl:25% Black Spot Long Tail: 100%
BBLL: 25% Black Spot Short Tail: 0%
BbLl: 25% Brown Spot Long Tail: 0%
BbLL: 25% Brown Spot Short Tail: 0%
BBll: 0%
bbLL: 0%
bbLl: 0%
bbll: 0%
