Photosynthetic organisms use sunlight to provide the energy necessary to combine carbon dioxide and water to form organic molecules and ATP. Those same photosynthetic organism also use cellular respiration to breakdown those organic molecules whenever there is an energy demand greater than what can be provided by photosynthesis or in the absence of light.
That would be PH and Salinity and Temperature
Continental drift happened around the Jurassic period, 175 million years ago.
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The mutation is a change in just one nucleotide in the gene for hemogloblin.
