Endotherms can use metabolic heat to regulate body temperature; the temperature is high and stable, even with external fluctuations
Answer:
The <u><em>pharynx</em></u> starts an involuntary swallowing action when senses food.The <u><em>esophagus</em></u> squeezes food down the digestive tract by an involuntary synchronized muscle movement called the <u><em>peristalsis</em></u>. Food that has been digested in the <u><em>stomach</em></u> is processed into a thick liquid called <u><em>chyme</em></u>.
Explanation:
Digestion can be described as a process in which food is broken down so that an organism can use the energy in the food. The process of digestion is voluntary in the start as we take in food. But after this, the process of digestion becomes involuntary from the pharynx. The esophagus is the large tract through which food is squeezed into the stomach from the mouth. The squeezing is done by the force generated by muscle movements which is termed as peristalsis.
<span>Minerals are solids.
That is because when water freezes into ice it becomes a mineral, since it's a solid at that time.
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