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Explain why respiration, temperature regulation and water balance in terrestrial animals are closely interrelated. Give example.
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- Explain why temperature fluctuations (both high and low temps) in membranes can be problematic in warm-blooded mammals. Explain how different organisms (e.g. plants, animals, and bacteria) can adjust membrane temperature fluctuations. short answer pleaseWhales can be deep divers with seemingly no ill effects. In the article by Hooker and Baird (1999), why do they suspect the whale dives were aerobic? Why do whales lower their ascent rate when diving to these great depthRelate CO2 transport to pH homeostasis. Be as detailed as possible in your explanation.
- It is essential for the cells in plants and animals to have an adequate supply of oxygen. Explain what the oxygen is needed for in the cells? (Be as specific as possible.)Explain three factors that affect an animal’s metabolic rate.Predict what would happen to the metabolic rate of the mouse if you increased the temperature. Predict what would happen to the metabolic rate of the mouse if you decreased the temperature (You can make this prediction with text or with lines on your graph). Support your prediction with evidence about endotherms and ectotherms. (Hint: Think about what happens to your body when you get hot or cold.)
- Explain why cells of most multicellular organisms cannot live long without oxygen.An average adult cheetah has a metabolic mass of 44,010 grams and a resting metabolic rate of 61.77 joules per second. Based on these data, would you characterize the cheetah as an ectotherm or endotherm? Support your answer with evidence from the graph.Compare and contrast: Adaptation and acclimatization Conformation vs. Regulation Diffusion, facilitated transport and active transport metabolic rates of large and small animals. convection, conduction, radiation and evaporation
- You are studying a large tropical reptile that has a high and relatively stable body temperature. How do you determine whether this animal is an endotherm or an ectotherm? (A) You know from its high and stable body temperature that it must be an endotherm. (B) You subject this reptile to various temperatures in the lab and find that its body temperature and metabolic rate change with the ambient temperature. You conclude that it is an ectotherm. (C) You note that its environment has a high and stable temperature. Because its body temperature matches the environmental temperature, you conclude that it is an ectotherm. (D) You measure the metabolic rate of the reptile, and because it is higher than that of a related species that lives in temperate forests, you conclude that this reptile is an endotherm and its relative is an ectotherm.Quantitative: Fick's first law helps us understand the relationship between a molecule's concentration gradient (the difference in its concentration at two locations) and diffusive flux. In organisms without circulatory systems, the delivery of oxygen to their body tissues can be limited by diffusion. Therefore, diffusion can literally determine the allowable thickness of their body. One example of an organism like this is a flatworm. There are over 30,000 species of marine flatworms which are often beautifully colored. Let's think more about what might be happening in a flatworm's body. a) Draw a picture of a slice through a flatworm showing its cross section and the water above and below. We'll let the total worm thickness be 2Ax which will simplify things as we go. b) Write Fick's equation for the flux of oxygen from the water above into the center of the worm. Label your drawing above with the key variables in this equation. c) A typical marine flatworm is about 1 mm thick. If the…. If a mouse and a small lizard of the same mass (both atrest) were placed in experimental chambers under identical environmental conditions, which animal would consume oxygen at a higher rate? Explain.