Biology For Dummies, Second Edition by Rene Fester Kratz PhD, Donna Rae Siegfried

By Rene Fester Kratz PhD, Donna Rae Siegfried

An up to date version of the last word consultant to realizing biologyEver questioned how the nutrition you consume turns into the power your physique must continue going? the speculation of evolution says that people and chimps descended from a typical ancestor, yet does it let us know how and why? We people are insatiably curious creatures who can not help puzzling over how issues work — beginning with our personal our bodies. would it not be nice to have a unmarried resource of quickly solutions to all our questions on how dwelling issues paintings? Now there is.From molecules to animals, cells to ecosystems, Biology For Dummies, second version solutions all of your questions on how residing issues work.Written in simple English and choked with dozens of illustrations, quick-referenceCheat Sheets, and worthwhile tables and diagrams, it cuts correct to the chase with fast paced, easy-to-absorb factors of the existence methods universal to all organisms.More than 20% new and up to date content material, together with a considerable overhaul to the association of subject matters to make it a pleasant lecture room supplementCoverage of the newest advancements and discoveries in evolutionary, reproductive, and ecological biologyIncludes useful, up to date examplesWhether you are at the moment enrolled in a biology category or simply need to know extra approximately this interesting and ever-evolving box of research, this attractive advisor provides you with a grip on complicated biology thoughts and free up the mysteries of the way existence works very quickly.

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These two oppositely charged ions are attracted to each other, forming an ionic bond. ✓ Covalent bonds are formed when atoms share electrons in a covalent reaction. When two oxygen atoms join together to form oxygen gas, they share two pairs of electrons with each other. Each shared pair of electrons is one covalent bond, so the two pairs of shared electrons in a molecule of oxygen gas have a double bond. Covalent bonds are extremely important in biology because they hold together the backbones of all biological molecules.

Bases are molecules that can split apart in water and release hydroxide ions (OH–). The most common example is sodium hydroxide (NaOH). When NaOH is added to water, it splits apart into Na+ and OH–. Charged particles, like hydrogen and hydroxide ions, can interfere with the chemical bonds that hold molecules together. Because living things are made of molecules, strong acids and bases can release enough of these ions to cause damage. Even water can split apart to create hydrogen and hydroxide ions.

5. Set up your experiment, being careful to control all the variables except the experimental variable. 6. Make your planned measurements and record the quantitative and qualitative data in a notebook. Quantitative data is numerical data, such as height, weight, and number of individuals who showed a change. It can be analyzed with statistics and presented in graphs. Qualitative data is descriptive data, such as color, health, and happiness. It’s usually presented in paragraphs or tables. Be sure to date all of your observations.

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