The ability of a frog to maintain its internal pH close to a set value is an example of 1) homeostasis. 2) metastasis. 3) responsiveness. 4) adaptiveness. 5) evolution.
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3. Homeostasis, maintaining a steady-state internal environment, is a characteristic of all living organisms. Choose three of the following physiological parameters and for each, describe how homeostasis is maintained in an organism of your choice. Be sure to indicate what animal you have chosen for each parameter. You may use the same animal or different animals for your three descriptions. • blood-glucose levels • body temperature • pH of the blood • osmotic concentration of the blood • neuron resting-membrane potential
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A frog is … A. an endothermic tetrapod B. a protochordate C. a vertebrate with visceral clefts as an adult D. able to use its skin for respiration E. A and D
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'There are two frog species (A and B) living in a pristine montane environment: Thirty individuals of each species are captured and moved to polluted, urban stream: The mutation rate in functional genes of Species A is 4 10 (-6). The mutation rate in functional genes of Species B is 8*10((-9). They both have the same number of functional genes The species that is more likely have beneficial allele arise and adapt to the new environment is Frog species The species that is more likely to accumulate deleterious Select mutations in the environment Frog species B Frog species'
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