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Ecology 6th Edition by Charles Krebs
النسخة 6الرقم المعياري الدولي: 978-0321688149Ecology 6th Edition by Charles Krebs
النسخة 6الرقم المعياري الدولي: 978-0321688149 تمرين 4
Cain (1944) stated:
Physiological processes are multi-conditioned, and an investigation of the effects of variation of a single factor, when all others are controlled, cannot be applied directly to an interpretation of the role of that factor in nature. It is impossible, then, to speak of a single condition of a factor as being the cause of an observed effect in an organism.
Discuss the implications of this principle-that the factors of the environment act collectively and simultaneously-with regard to methods for studying species distributions.
Physiological processes are multi-conditioned, and an investigation of the effects of variation of a single factor, when all others are controlled, cannot be applied directly to an interpretation of the role of that factor in nature. It is impossible, then, to speak of a single condition of a factor as being the cause of an observed effect in an organism.
Discuss the implications of this principle-that the factors of the environment act collectively and simultaneously-with regard to methods for studying species distributions.
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Ecology is defined as the study of the i...
Ecology 6th Edition by Charles Krebs
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