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Biology. - Coggle Diagram

- - - - 1 more item...
    - - Covalent bonds: a covalent bond is the strongest bond and it is when one atom shares an electron with another atom. It is the strongest bond.
- - - - Must be able to reproduce.
        
        Must grow and develop.
        
        Must need materials and energy.
        
        Must evolve.
        
        Must keep internal body waming.
        
        Must follow universal genetic code.
        
        Respond to the enviorment.
        
        Be made of cells.
- - - - Electrons: orbit the nucleus. Tiny tiny mass, thousands of times smaller.
        If a atom has 1 proton it must have 1 electon. Same with 10 protons and ten electrons.
- - - - A polar bond: is oppositly charged each side of a polar molecule has either a positve and negative side, thing such as water, is polar, a polar molecules is asymmetric.
        
        non polar bond: has no charge. Things such as CO2 is nonpolar it is symmetrical. Oil is non polar which means it has no charges and it cannot make a hydrogen bond with water and it is unable to mix.
- - - - Mathematical model: a model that is made out of equations and data, for example, it can help predict the weather.
        
        Conceptual model: a model to make comparison to help you better understand.
- - - - Controlled experiemnts/ environment: the controlled environment is everything else that you keep the same.
        Say your studying for a test, the amount of studying you do is the independent variable,
- - - - Water is called the universal solvent because it can dissolve more substances that any other liquid.