Bedbug Biology
1. Bedbugs have been evolving in the United States since the 1940s and 50s. (1) Due to genetic mutations after World War II a widespread of pesticides known to be DDT was used. The genetic variation makes them resistant to the pesticides. (2) These DDT pesticides were used on the bedbug population, making them resistant to the pesticide. This illustrates natural selection because those resistant with the pesticide survive best. Which is heritable to their population with the resistant pesticide offspring. This give their offspring the best fitness for adaptation to survive and breed resistant pesticide to their offspring as well. (1)
2. Over the years our brains have shrunk from our ancestors, which had a much larger variation than most human’s
today. (3) Our ancestor had much larger cortex, better for fitness enhancing their vision and helping with survival. Natural selection in a complex society where survival is hard, enhanced characteristics helps cognitive capabilities. (4) The frontal lobe region in the brain has been increase because it controls our comprehending skills, as well as reading and writing, what we do most. (3) As these changes occur in our brain, our DNA piles numerous mutations that changes the inner workings of the brain. (5)
3. Evolution cannot be teleological or goal-directed because evolution is random without any goals or purpose. (6) As babies social and mental skills develop, they learn behaviors that are appropriate from other human behavior. (7) Growing up they pay attention to human actions known as a goal directed behaviors. The heritability traits are passed on from the parent’s ability to achieve a goal directed behavior. (7) Evolution must go through natural selection, where certain variation characteristics help an individual live longer and reproduce to pass on. Although adaptations are not necessary for best fitness over previous traits. (6)
2. Over the years our brains have shrunk from our ancestors, which had a much larger variation than most human’s
today. (3) Our ancestor had much larger cortex, better for fitness enhancing their vision and helping with survival. Natural selection in a complex society where survival is hard, enhanced characteristics helps cognitive capabilities. (4) The frontal lobe region in the brain has been increase because it controls our comprehending skills, as well as reading and writing, what we do most. (3) As these changes occur in our brain, our DNA piles numerous mutations that changes the inner workings of the brain. (5)
3. Evolution cannot be teleological or goal-directed because evolution is random without any goals or purpose. (6) As babies social and mental skills develop, they learn behaviors that are appropriate from other human behavior. (7) Growing up they pay attention to human actions known as a goal directed behaviors. The heritability traits are passed on from the parent’s ability to achieve a goal directed behavior. (7) Evolution must go through natural selection, where certain variation characteristics help an individual live longer and reproduce to pass on. Although adaptations are not necessary for best fitness over previous traits. (6)