Animal Physiology: From Genes to Organisms by Lauralee Sherwood

By Lauralee Sherwood

Stay alongside of brand new quick advances within the organic sciences with ANIMAL body structure: FROM GENES TO ORGANISMS 2E with CourseMate! With assurance of animal species that might be suitable on your animal-related occupation, this biology textual content will give you the instruments you want to prevail. packing containers came upon in the course of the textual content akin to Molecular Biology and Genomics, past the fundamentals, demanding situations and Controversies, Unanswered Questions, and a better examine variation offer you examples of state-of-the-art study and assist you see how what you're studying applies to the true international. fee Your knowing questions after every one significant part assist you assessment the most rules as you learn. each one bankruptcy then ends with a bankruptcy precis, a suite of overview, Synthesize, and learn questions, and an inventory of prompt Readings for additional learn.

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All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. HO M EO S TA S I S A N D I N T EG RAT I O N : T HE F O U N DAT I O NS O F P H YS IO LO GY 11 Volume grows along three dimensions Surface area grows along two dimensions Bandicoot Elephant FIGURE 1-4 The effects of size on surface area and volume.

Using the outcome of these tests, refine the earlier questions and hypotheses, and design new tests. Often this process can take months or even decades, often because results are not clear or test only one small aspect of a larger question. For example, deep-sea physiologists have found that many proteins from deep-sea animals are indeed more resistant to pressure than are proteins from shallow-living animals. The researchers are now trying to find out how those proteins can resist pressure. However, some deep-sea proteins are not pressure resistant, and now researchers are asking whether other protective mechanisms exist.

DMS in turn is a breakdown product of an osmolyte (a molecule used to regulate cell water content; see Chapter 13) in marine phytoplankton (single-cell algae such as diatoms that are Earth’s most common photosynthesizers). The hypothesis is that, as Earth’s climate enters any warming trend, plankton growth increases and so, therefore, does DMS production. In turn, more clouds form that, by blocking sunlight, oppose the heating trend. Thus, the temperature of the planet’s atmosphere is prevented from extreme changes: Increasing atmospheric temperature → more DMS release from phytoplankton → more clouds form → less sunlight reaches Earth → atmospheric cooling If this is correct, would it be fair to think of Earth itself as a giant living organism (called Gaia)?

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