The answers A. C. D. are all physical reactions
The answer is B. Digestion of food
When food is digested it is chemically broken down
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Notchochord, morphology, chordates
Answer: Abortion is the killing of an unborn baby. Sometimes the head and bones are crushed, and pliers and scissors are used to slice and pull out the dead baby. I dont know how much it costs
Explanation:
Answer:
Mammals first appeared
Explanation:
The dinosaurs became extinct one million years after the Cenozoic era started. The mammals first appeared as the modern culture first appeared in that era.