Biology

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Photosynthesis: How Plants Transform Energy from the Sun
Photosynthesis: How Plants Transform Energy from the Sun 150 150 Deborah

Overview:  What Is Photosynthesis? Photosynthesis is the process that plants use to produce energy from light.  It takes place in a series of chemical reactions involving chlorophyll, using carbon dioxide,…

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A Biology Review of Mitosis
A Biology Review of Mitosis 150 150 Deborah

Overview:  The Cell Cycle Many eukaryotic cells divide through the method of mitosis.  However, it is only one part of the cell cycle.  A cell cycle is a recurring sequence…

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Biology Review of Cell Division
Biology Review of Cell Division 150 150 Deborah

Overview:  The Purposes of Cell Division Multicellular organisms come from processes of cell division.  Overall, cell division accounts for organism growth and repair, as well as types of reproduction.  Eukaryotes…

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Meiosis: Cell Division of Gametes
Meiosis: Cell Division of Gametes 150 150 Deborah

Overview:  Why Meiosis? When eukaryotic cells divide to form copies in the next generation, mitosis works well to ensure that each daughter cell has the correct number and type of…

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Solutions and Diffusion in Biology
Solutions and Diffusion in Biology 150 150 Deborah

Overview:  What Are Solutions? A solution is a mixture in which molecules of one substance are distributed evenly in another.  For example, in a solution of sugar water, molecules of…

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Biology: Types of Cells
Biology: Types of Cells 150 150 Deborah

Overview:  Two Major Cell Groups All cells can be divided into two major cell groups: prokaryotes and eukaryotes.  They are divided into those two groups based on whether  the cell…

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Organic Compounds
Organic Compounds 150 150 Deborah

Overview: What Are Organic Compounds? All organic compounds contain carbon.  This is because of the atomic structure of carbon such that it can bind with up to four other elements at…

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Chemical Bonds and Reactions in Living Things
Chemical Bonds and Reactions in Living Things 150 150 Deborah

Overview Chemicals form the basic building blocks of matter in living things as well as nonliving things.  Molecules are formed by chemical bonds that join elements and make substances.  Chemical…

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Mixtures and Compounds in Living Organisms
Mixtures and Compounds in Living Organisms 150 150 Deborah

Overview Mixtures and compounds are important combinations of elements.  They are essential to the chemical processes that support living things, as well as those that occur every day in nonliving…

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Structure of Cells
Structure of Cells 150 150 Deborah

Overview:  What Are Cells? Most cells are too small to be seen without a microscope, so theories about them did not exist until after microscopes were in use.  A scientist…

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