Meiosis is the process in sexually reproducing organisms where cells divide. The cells produced during meiosis have half the chromosome number as the original cell. There are two cell divisions in meiosis‚ meiosis l and meiosis ll. These cell divisions produce 4 hapolid daughter cells. Haploid cells contain only one set of chromosomes‚ which is written as n. Meiosis consists of nine phases. In meiosis the interphase l the chromosomes replicate and the centrosome duplicates in one diploid cell
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Nitrogen Cycle Questions 1. Nitrogen is both the __most abundant element__ and in organisms it is the raw material of two main macromolecules __ammonia and nitrite which build proteins and _nitrates which build your genetic material‚ DNA. 2. In the atmosphere it is found in the form of N2 which is __nitrogen gas____. 3. These Nitrogen molecules then need to go through a process called __nitrogen fixation__ in order to be converted into molecules that living organisms can use readily. 4. Two forms
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Where should the shoe-making process be shut down: step 1‚ 2‚ or 3? Homework: 1. Manage your class notes. Pay special attention to: Learning to know and use new vocabulary words. Examples of “themes” from day 1‚ such as emergent properties‚ energy‚ and structure/function‚ plus protein structure. 2. Use Chapter 8 Optional Review in Mastering Biology before noon Friday (test day). 3. Prepare for the next class. Skim the next assigned chapter. Complete the “Before
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AP Biology Lab 1 Ross Lordo Introduction Questions 1. The solute potential would be -2.48. If the concentration inside the cell is .15 M‚ then would diffusion out of the cell and into the solution of .1 M. This is due to water potential and the tendency for water to move from areas of high water potential to low water potential. 2. The turgor pressure must be equal to the water potential if there is no net diffusion. The cell and environment have reached equilibrium and the movement of water
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Properties of water (+H-O+O) 1. Polar Molecule-Opposite ends attract 2. High Heat Capacity-Bonds break at high temp 3. Cohesive- Water attracts water 4. Solvent- Ability to dissolve 5. Water less dense as solid than water *Hydrogen Bond- Holds 2 molecules of water 2Geather *Covalent Bond- Holds H & O atoms 2Geather Macromolecules: 1. Carbohydrates (Grains) Monomer-Monosaccharide 3 Subs- Glucose‚ Glycogen‚ Starch -Carbon‚ Hydrogen & Oxygen 2. Protein (Polypeptide) (Red Meats)
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Ellipses: An ellipsis is a series of three dots‚ used to create a pause in thinking or‚ when quoting‚ to omit information. The deliberate omission of a word or words readily implied by context. Examples: The man looked above . . . all he could see were three black silhouettes against the bright blue sky. When the man looked above he couldn’t quite believe what he saw . . . . In the anime world‚ Naruto is a hero; Goku‚ a legend. Enjambment (poetic element): Enjambment is the breaking of
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Diffusion and Osmosis Through Dialysis tubing We did this experiment to test the diffusion of different substances through dialysis tubing. We used what we knew about diffusion to make predictions on what we thought the mass of the dialysis tubing to be after submerging them for 30 mins and we knew that diffuse occurs from highest concentration to lowest concentration. Since the dialysis tubings are filled with different substances than what they are being put into then they should all gain
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civilization or culture into seven components. For the first two chapters‚ go through the AP World History textbook‚ The Earth and Its People‚ and analyze each of the five ancient civilizations. Use the provided questions as a guide. Not every question will be answered for each civilization. Include specific and general information. Then complete one each for the classical civilizations and Han China. Please Note: I am not expecting you to rewrite the textbook‚ but make sure you cover all necessary
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With the evolution of animals living on land from animals living in the water‚ many changes needed to be made in order for survival. Each problem that these organisms may have experienced in the past has been dealt with a solution of some manner. One of the main problems was water storage. Because organisms in an aquatic environment are surrounded by water‚ they do no experience problems with water storage‚ but without an aquatic environment there are bound to be problems. The land organisms need
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Practical 1- An experiment to observe the features of an Onion Cells Method: Gather all equipment that will be used for the experiment and check that they are clean and undamaged. Using forceps‚ peel the membrane from the underside of a small piece of onion. Place the membrane flat on a clean‚ glass slide and add one drop of iodine solution. Use a pin to carefully lower the cover slip over the slide‚ ensure there are no air bubbles before the use of the slide. Set the microscope to its lowest
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