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Biology

University of the Pacific

1968

Amphibians

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Oxygen Uptake And Thyroid Activity During Amphibian Metamorphosis, Susan Ann Foster Jan 1968

Oxygen Uptake And Thyroid Activity During Amphibian Metamorphosis, Susan Ann Foster

University of the Pacific Theses and Dissertations

Oxygen consumption can most readily be related to wet weight. However, the weight of a tadpole increases so long as it is feeding, then decreases during final non-feeding stages. Oxygen uptake may also be related to dry weight, but dry weight increases significantly from early tadpole stages to adult (Funkhouser and Mills, in press). There is change in one factor at the same time the change in the the other factor is in the opposite direction. Total nitrogen content may be used as an index of the metabolizing tissue, but is subject to the same criticism as dry weight (Moore, …