An ectotherm gets its heat from external sources
(Remember "ecto" means outer, "endo" means inner)
Answer: Rosalind Franklin
Franklin created an x-ray photograph that allowed Watson and Crick to work out the 3D structure of DNA.
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Reabsorption takes place mainly in the proximal convoluted tubule of the nephron .
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Darwin agreed with Lyell's uniformitarian theories, and the uniformitarian understanding helped Darwin explain the elements of natural selection. Malthus believed that starvation would always be a part of human life because he thought that population would increase at a greater rate than food supply.
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