The correct answer should be
<span>D. Autonomic nervous system
It is called autonomic because it works on its own and it regulates organs functioning which is a thing that happens involuntarily. It regulates heart beats for example and it's not something that you do voluntarily since the heart beats regardless of you. It also controls things like vomiting or sneezing that you can't choose not to do when it starts happening.</span>
Answer:
Its the only planet that is able to produce the oxygen to keep the water drinkable and liveable for sealife and animals to live in
Explanation:
A) 25%. Since the man is BO and the woman is AB, you multiply it and get AB,BB,AO, and BO. Then you divide 100% with those four and you'll get the answer of 25%.
Every substance produces light of different colors on the basis of level of energy that is possessed by the electrons of a substance.
<u>Explanation:</u>
Every substance has its level of energy. Depending upon that energy level the light of different colors id produced. There are electrons present in every substance that is made up of atoms and those atoms consist of electrons.
Whenever an atom is heated, the electrons present get excited and their energy level also increases but when their energy level comes down they emit energy in the form of light. The color of that light depends upon the level of energy of an electron. Each substance emits its color.
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Earth day is celebrated on April 22 every year. it was first celebrated in 1970. it is celebrated to raise awareness for environmental protection and to take care of our planet ( earth ).
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