By Cecie Starr, Christine Evers, Lisa Starr
BIOLOGY this present day AND the following day is jam-packed with functions which are suitable on your everyday life. The transparent, ordinary writing kind, in-text studying help, and trendsetting artwork assist you comprehend key organic suggestions. The accompanying Aplia for Biology extra improves comprehension with conceptually established workouts and instant suggestions. total, this available and interesting advent to biology presents an knowing of biology and the method of technological know-how whereas constructing the critical-thinking abilities.
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Sample text
They asked 1,100 people between the ages of thirteen and thirty-eight to watch a movie and eat their fill of potato chips. Each person got an unmarked bag that contained 13 ounces of chips. The individuals who got Olestra-containing potato chips were the experimental group, and individuals who got regular chips were the control group. The variable consisted of the presence of Olestra in the chips. Afterward, the researchers contacted all of the people and tabulated any reports of gastrointestinal problems.
First, water is an excellent solvent. A solvent is a liquid that can dissolve other substances. When a substance dissolves, its individual molecules or ions become solutes as they disperse. Salts, sugars, and many other compounds that dissolve easily in water are polar, so many hydrogen bonds form between them and water molecules. A salt is a compound that dissolves easily in water and releases ions other than H+ and OH– when it does. 8). You can see how water interacts with hydrophobic (water-dreading) substances if you shake a bottle filled with water and salad oil, then set it on a table and watch what happens.
Producers such as plants make their own food; animals and other consumers eat other organisms, or their wastes and remains. Receptors help organisms keep the conditions in their internal environment within ranges that their cells tolerate—a process called homeostasis. DNA, which is inherited from parents, contains information that is the source of an individual’s traits. A one-way flow of energy through the biosphere and the cycling of nutrients among organisms sustains life, and life’s organization.
