Biology, 11.11.2019 09:31 ALGEBRAHELP9504

How old is the pecten gibbus? and how long was it around for?

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Biology, 21.06.2019 19:00, donuteatingcat

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Biology, 22.06.2019 00:00, bettybales1986

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Biology, 22.06.2019 02:00, badpotterchris

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Biology, 22.06.2019 05:20, kay3940

The large increase in atmospheric carbon dioxide in the last 50 years most likely comes from a. an increase in cellular respiration b. increased decomposition by bacteria c. an increase in the burning of fossil fuels d. an increase in photosynthesis