Answer:Warming of the Earth's climate and associated changes to oceans were the most likely causes of the extinctions. At the end of the Permian Period volcanic activity on a massive scale in what is now Siberia led to a huge outpouring of lava.
Explanation:
Organisms are the biotic parts of an ecosystem.
Explanation:
<u>B. Hypothesis</u>
A scientist comes up with a hypothesis which is a testable explanation for the phenomenon or what’s occurring
A prediction of the outcome is usually made based on the hypothesis...
Further Explanation:
Scientific investigations usually begin with observations. These are typically something that would catch the researcher’s attention. Then, the scientist comes up with a hypothesis which is a testable explanation for the phenomenon or what’s occurring a prediction is usually made based on the hypothesis.
A prediction of the outcome is usually made based on the hypothesis, after which it is tested via an experiment. The scientist then use the results to make new hypotheses or predict certain outcomes.
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A and C
They both can be compared to present or past objects to show how they have changed or evolved over time
