AP Biology Summer Assignment: Survival Of The Sickest

Improved Essays
Justin Dubler
August 31, 2015
Mrs. Werle
Period #1-2
AP Biology Summer Assignment
Survival of the Sickest
Big Idea 1: The process of evolution drives the diversity and unit of life.
Passage 1: “Our genetic makeup has been adapting in response to where we live and what the weather’s like. The food we eat has evolved to cope with the organisms that eat it, and we’ve evolved to cope with that. We’ve looked at the way we’ve evolved to resist or manage the threat posed by specific infectious diseases, like malaria… At the end of the day, every living thing–bacteria, protozoa, lions, tigers, bears, and your baby brother–shares two hardwired imperatives: Survive. Reproduce.” (Chapter 5- Of Microbes and Men)
Enduring Understanding: 1.B All organisms
…show more content…
Humans have been able to say goodbye to their fur and walk upright to help them venture into deeper water while also being able to grab high fruit on trees on the land. The changing environment for humans and the evolution of them shows that only the best traits will be passed on, such as being able to stand on two feet and having downward-facing nostrils. Monkeys have not evolved, while humans have because the environment of monkeys made it unnecessary to add any extra features that were not already present. They are able to gloriously swing from branch to branch and get any type of fruit that their heart desires. These two populations started off identical a long time ago, but have since separated into two extremely different species. Populations of organisms will always continue to evolve because there is always a need to adapt to the environment that the organism is living …show more content…
Passage 1: “The leading explanation for cold diuresis — the need to pee when it 's cold — is still pressure; but not external pressure, internal pressure. The theory is that as blood pressure climbs in the body 's core because of constriction in the extremities, the body signals the kidneys to offload some of the extra fluid.” (Chapter 2- A Spoonful of Sugar Helps the Temperature Go Down)
Enduring Understanding: 2.C Feedback mechanisms are implanted in all types of organisms and become present most often when there is a change in environment. For one particular case for humans, it happens to be when they experience cold. When humans feel the cold for a long amount of time, they begin to have to pee to relieve blood pressure. This is a clear example of how the feedback mechanism is used in humans to maintain dynamic homeostasis in any environment. Organisms will always respond to changes in their external environment and do whatever they can, such as trying to pee, to maintain their own homeostasis while their presence in the different environment

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