Answer:
Organic evolution is the theory that more recent types of plants and animals have their origins in other pre-existing forms and that the distinguishable differences between ancestors and descendents are due to modifications in successive generations.
Explanation:
A. greenhouse gases interact with infrared photons and reflect them back to earth's surface
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Answer:
The muscular system helps push air in and out of the respiratory system. The respiratory system has the lungs to deliver air to the muscles
Explanation:
