Evolution Blog 2022

 

 Sexual Selection is a subcategory of natural selection. It is when an organism chooses a mate of the other sex to reproduce. There is a competition between the same sex or organism to reproduce with the opposite sex. A great example of sexual selection is peacocks. 

 A species is a group of organisms that are similar that can produce more offspring. Speciation is when a population evolves into a more distinct species and the species has to be producing viable offspring that will later reproduce.  An example of speciation is when a bird has offspring that evolve and have different features one has a small beak, one has a medium beak, and another one has a large beak. I think that speciation is a complex term because so many different species can have all kinds of differences but that is what makes it so interesting.  file:///Users/alissaalumbaugh/Downloads/Scanned%20Documents%20(27).pdf (image will not upload in blogger)

 

 Phenotypic plasticity when there is an organism that has different phenotypes that are in different environments. For example when 2 squirrels have the same genotype but one is in one environment but will change to adapt to the new environment over time. 

 Selection can be decided on by phenotype . Physical characteristics can always be altered so that a species can evolve and have a better chance at survival. When an organism is able to survive then it can produce more offspring and evolve into a better species.