The mechanical digestion in the stomach involves the contractions of muscle smoothly. Thus, the correct answer is C.
The process of converting food into nutrients to use it as energy and for development is called as digestion. The digestion takes place mechanically and chemically.
In the chemical process of digestion, food is broken down with the help of enzymes whereas in the mechanical process of digestion food is broken down with the help of chewing from teeth or tearing.
Therefore, option C is correct as this breakdown through teeth involves contractions and relaxation of muscles.
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Mechanical digestion in the stomach involves the physical breakdown of food through smooth muscle contractions, which churns and mixes the food, preparing it for further chemical digestion.
Mechanical digestion in the stomach involves the breaking down of food into smaller bits using physical force. This process includes the smooth muscle contractions of the stomach to churn the food. This mechanical churning of food in the stomach serves to further break it apart and expose more of its surface area to digestive juices, creating an acidic soup called chyme.
These contractions isolate small sections of the stomach, moving the contents back and forth while continuously subdividing, breaking up, and mixing the contents. By moving food back and forth in the stomach, mechanical digestion mixes food with digestive juices and facilitates the further process of chemical digestion.
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Answer:
Mitosis has four sequential stages: prophase, metaphase, anaphase, and telophase.
Explanation:
In prophase, each chromosome becomes condensed and more visible, and there is the breakdown of the nuclear membrane and appearance of spindle fibers.
The benefits of wildfires in grasslands and northern forests are similar - b. increased food production for grazers
Wildfires affect the ecosystem by
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