Biology for Dummies by Donna Rae Siegfried, René Fester Kratz

By Donna Rae Siegfried, René Fester Kratz

An up-to-date version of the last word advisor to realizing biology

Ever questioned how the nutrients you consume turns into the power your physique must preserve going? the idea of evolution says that people and chimps descended from a standard ancestor, yet does it let us know how and why? We people are insatiably curious creatures who can't support brooding about how issues paintings — beginning with our personal our bodies. Wouldn't it's 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 your entire questions on how dwelling issues work.

Written in simple English and jam-packed with dozens of illustrations, quick-reference
Cheat Sheets, and beneficial tables and diagrams, it cuts correct to the chase with fast paced, easy-to-absorb factors of the lifestyles techniques universal to all organisms.
greater than 20% new and up to date content material, together with a considerable overhaul to the association of themes to make it a pleasant school room supplement
assurance of the newest advancements and discoveries in evolutionary, reproductive, and ecological biology
contains functional, up to date examples

Whether you're at the moment enrolled in a biology type or simply need to know extra approximately this interesting and ever-evolving box of research, this enticing consultant offers you a grip on complicated biology recommendations and unencumber the mysteries of the way existence works in no time.

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Extra info for Biology for Dummies

Example text

Next come a description of the materials used; a description of how the experiment was designed and performed; and the results of the experiment, including raw data, graphs, and tables. Finally, the paper notes the author’s conclusions and errors that occurred during the experiment(s). Scientific journals undergo a peer-review process to help ensure the reliability of published scientific information. Here’s how the process works: The editor of a scientific journal sends a research paper out to other scientists who work in the same field as the scientist(s) who wrote the paper to examine and comment on the work.

Acids and Bases (Not a Heavy Metal Band) Some substances, such as lemon juice and vinegar, have a real edge when you taste them. Others, such as battery acid and ammonia, are so caustic you don’t even want to get them on your skin. These substances are acids and bases, both of which have the potential to damage cells. ✓ Acids are molecules that can split apart in water and release hydrogen ions (H+). A common example is hydrochloric acid (HCl). When HCl is added to water, it splits apart into H+ and Cl–, increasing the number of hydrogen ions in the water/HCl solution.

If an experiment is performed repeatedly and the results are within a narrow margin, the results are said to be 21 22 Part I: Biology Basics significant. In your experiment, if the race times for your friends were very similar within each group, so that pretty much all of your pasta-eating friends ran faster than your non-pasta-eating friends, then that twominute difference actually meant something. But what if some pastaeating friends ran slower than non-pasta-eating friends and one or two really fast friends in the pasta group lowered that group’s overall average?

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