Indicate whether you think each statement is an observation or a hypothesis prediction C4 plants have higher levels of carbon 13

Question

Indicate whether you think each statement is an observation or a hypothesis prediction C4 plants have higher levels of carbon 13 than both living and extinct C3 plants The ratio of carbon isotopes in extant animals reflects the kinds of animals and plants that they eat Fossil animals will show the same relationship between the ratios of carbon isotopes and diet as living animals Hominin fossils in East Africa dating from 4 2 million years ago have a relatively low ratio of carbon 13 to carbon 12 The relatively low ratio of carbon 13 to carbon 12 in 4 2 million year old hominin fossils indicates a diet rich in C3 plants The relatively low ratio of carbon 13 to carbon 12 in hominin fossils is similar to the ratio found today in the teeth of chimpanzees Chimpanzees feed on fruits and leaves Plant fossils from the same sites where the teeth of 4 2 million year old hominin fossils were discovered will contain C4 plants consistent with early hominins living in grassy woodlands where they easily could have found C plants 4 2 million year old hominin fossils were actively selecting C3 plants for their diet Choose Choose Hypothesis Prediction Observation Choose Choose Choose Choose Choose Choose Choose O

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