BIO 100 Lecture Notes - Lecture 1: Phospholipid, Stowaway, Cytotoxicity

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Characteristics of life (cid:374)ot ali(cid:448)e if it is(cid:374)"t expressing all of these. Something non-living as an example of each characteristic. Toxoplasmosis- a single-celled parasite called toxoplasma causes this disease. Can cause serious health problems for pregnant women. Toxoplasma gondii finds itself in a rat and manipulates the behavior of a rat so that it seeks out cats to be eaten. Mutant toxoplasma gondii affects mice to seek out cats while the unmutated version does not. Humans go to clean out litter boxes and eggs in fecal matter can float through air and are breathed in. Natural selection- organisms that are better adapted to their environment tend to survive and produce more offspring. For something to be investigated scientifically, it must: Hypothesis: plants add a substance to air necessary for life. Prediction: if a mouse and a plant are placed in a sealed jar, then the mouse will live. Conclusion: the results of this experiment support the hypothesis.

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