1. Early earth had no ozone layer, which means it was most likely extremely hot.
2. Young earth had no oxygen and life needs oxygen in order to survive.
3. There where so many natural disasters happening all the time, like volcanic eruptions and constant impact with meteorites and asteroids.
-Extra one (4. Earth originally had no ocean and water. Oceans eventually formed from the water vapor released from the volcanic eruptions, but before that there was nothing.)
<span>Three anatomical features that birds share with their theropod ancestors are:
</span><span>1. they had light, hollow bones
</span>2. they rearranged hip and leg muscles because this of <span>improved bipedal movement
</span>3. they had their flight oriented with the use of wings for balance
The statement that describes a scientific theory is as follows: Jose explained that all planets orbit around the sun in an elliptical path (option A).
<h3>What is a scientific theory?</h3>
A scientific theory is a coherent statement or set of ideas that explains observed facts or phenomena and correctly predicts new facts or phenomena not previously observed.
A theory can also be described as a statement that sets out the laws and principles of something known or observed, in other words, a hypothesis confirmed by observation, experiment.
According to this question, the fact that all planets orbit around the sun in an elliptical path is a scientific theory because it has been tested and confirmed to be true.
Therefore, the statement that describes a scientific theory is as follows: Jose explained that all planets orbit around the sun in an elliptical path.
Learn more about scientific theory at: brainly.com/question/2375277
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