The evolution of plants has resulted in increasing levels of complexity‚ from the earliest algal mats‚ through bryophytes‚ lycopods‚ ferns to the complex gymnosperms and angiosperms of today. While the groups which appeared earlier continue to thrive‚ especially in the environments in which they evolved‚ each new grade of organisation has eventually become more "successful" than its predecessors by most measures. Probably an algal scum formed on land 1‚200 million years ago. In the Ordovician period
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Ernie Breaks Sometimes expectations are too big to satisfy‚ even though you try your very best. It would be wrong to raise expectations to a level that cannot be met. You are scared that you might disappoint the people you have closest. Therefore you try to hide yourself and your insufficiency. This is just one of the things Cara deals with in the story‚ Ernie Breaks‚ written by Genevieve Scott. The short story is told through the eyes of Cara. Cara has just finished fourth grade‚ and her mother
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reaction. Life would not exist without the presence of enzymes (Phillips‚ 2017). Through chemical reactions‚ this energy is created and is controlled by a catalyst‚ enzymes. Enzymes are known as proteins that are produced in living cells that speed up the metabolic processes of an organism. These catalysts speed up these reactions by decreasing the activation energy‚ how much energy is needed for a chemical reaction to happen (WBC‚ 2015). An enzyme-substrate complex forms when a substrate attaches to
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would in turn allow the wearer to do things without being watched‚ therefore he or she could get away with virtually anything and everything. Obviously with such a powerful ring‚ many would assume that it would lead to moral corruption because it would allow the wearer to do anything they pleased without consequence. In a society that is so heavily dependent on the interaction and perception of others‚ with the Ring of Gyges there would be no limits to what one could do. To be completely honest‚ I
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Enzymes are biological catalysts that speed up chemical reactions by lowering the amount of activation energy needed to start the reaction and let the reaction occur at temperatures found in living cells. The way that enzymes do this is explained with the lock and key hypothesis. This hypothesis says enzymes have a specific shape called the active site which is different between different enzymes. Molecules called the substrate that participates in the reaction also have a specific shape that can
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Animals do not have cell walls‚ but do generally are multicellular‚ reproduce sexually and have gap junctions. Animals are ingesting heterotrophs; fungi have absorptive nutrition. Development order: fertilization‚ cleavages‚ blastula‚ gastrula and metamorphosis. Ancestor of animals: protozoa (choanoflagelate) Know Animal Taxonomy including Lophotrocozoa!!!! Only animals have hox genes Sponge=perifera=parazoa=lacks true tissue Eumetazoa=everything besides sponge Cephalization=sensory organs
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Prison Break is an American television serial drama created by Paul Scheuring‚ that was broadcast on the Fox Broadcasting Company in four seasons‚ from 2005 until 2009. The series revolves around two brothers; one has been sentenced to death for a crime he did not commit‚ and the other devises an elaborate plan to help his brother escape prison. The series was produced by Adelstein-Parouse Productions‚ in association with Original Television and 20th Century Fox Television. Along with creator Paul
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Animals are Our Lives “Clearly‚ animals know more than we think‚ and think a great deal more than we know.” - Irene M. Pepperberg. I agree with this quote because I believe that animals help humans more than we give them credit for. Many animals are service animals or just companions. Short‚ tall‚ or small‚ animals are an important part of making humans who we are today. To begin with‚ animals can save peoples lives in some situations. For example‚ in the chapter‚ “Dogs Make Us Humans” from the
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Analysis of the Compromise Breakdown from 1820 to 1860 Time periods of American history are analyzed closely to the extent that it is essential to understand the motives and basis for future events and to recognize social patterns. Among events that have affected the United States‚ immigrations‚ wars and political dispute are three of the chief categories that most directly affect the state of the nation as well as each other. The war class has been easily liked to both political and social changes
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on enzyme activity Objective To study the effect of two heavy metal ions‚ lead (II) ions and silver ions on the enzyme activity of invertase. Introduction Hypothesis: The rate of enzyme reaction of invertase decreases and the reaction eventually stops as the heavy metal ions inhibit the enzyme reactions. Biological principle: Heavy metal ions are non-competitive inhibitors. They do not compete with the substrates for the active sites of enzymes. They attach to other parts of the enzyme molecules
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