BIO SQ EXAM 1

BIO SQ EXAM 1 - 1. Cell Theory- The pattern component is...

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1. Cell Theory- The pattern component is that all organisms are made up of cells. the process component is that all cells come from preexisting cells. The Theory of Evolutions by Natural Selection- The pattern component all species are related to one another through common ancestry. The process component (natural selections) is that species have changed throughout times. The first condition is that individuals within a population vary in their heritable traits or characteristics. The second condition is that certain heritable traits help individuals survive longer or reproduce more. 2. The hypothesis of spontaneous generation is that cells can suddenly appear and come to life from nonliving material. The cell theory challenges this hypothesis because it states that cells can only come from living cells. The fist flask he used was straight neck flask and the outcome predicted by spontaneous generation and cell theory was that cells would arise in the brothel. The second flask he used was the swan-necked flask and the outcome predicted by spontaneous generation was also that cells would arise in the broth. But the cell theory predicted that cells would NOT arise in this flask (swan necked). He used a swan-necked flask because after boiling the broth, the gas would condense in the neck of the flask, creating a sort of barrier between the cells in the outside air and the contents in the flask. He boiled the broth in each flask in order to kill all the living cells that might be in the broth. He didn’t want any cells already in the broth before he started his experiment because it could mess up his results. 3. The goal of taxonomy change was to try to classify species related to one another closer instead of how they appeared as this gave rise to multiple problems due to inaccurate information. 4. Linnaeus's classification system involved only 2 kingdoms, 1 was plants the other was animals. But there were many organisms, including bacteria that didn’t fit into either category. He placed organisms into each kingdom according to how similar their appearance was (whether they move or not) and how similar their source of food was (whether they generate their own food or eat other organisms). His method was based off of too many broad characteristics of organisms that would be a better way to classify them. Linnaeus focused on form and structure, but once scientists discovered more about each organism, they wanted to focuses more on the relationship between each organism at the molecular and genealogical level. Scientists also wanted to focus on the evolutionary relationships between organisms and this is reflected by the tree of life that later on the scientists have developed. 5. The 1st is the food competition hypothesis, it was thought that giraffes had long necks
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BIO SQ EXAM 1 - 1. Cell Theory- The pattern component is...

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