Answer: The main organ of the integumentary system is the skin.
Explanation: The skin regulates body temperature, keeps germs from entering your body, and produces vitamin D to help absorb calcium.
Answer:
Since the industrial revolution, human activities have also resulted in an increase in natural greenhouse gases, especially carbon dioxide. An increase in these gases in the atmosphere enhances the atmosphere's ability to trap heat, which leads to an increase in the average surface temperature of the Earth.
Explanation:
Answer:
an allergic reaction to the wasp bite
Explanation:
this happens when a wasp first stings u it's only temporary of course
Mechanical digestion is the breaking down of food into smaller pieces physically. Mechanical digestion begins in the mouth as the food is chewed.
but in the case of chemical digestion, it breaks the food into simpler nutrients that can be used by the cells. Chemical digestion begins in the mouth when food mixes with saliva.
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