Question: When an atom that has no charge loses two electrons, it becomes a:
A: positive ion.
B: negative ion.
C: positive isotope.
D: negative isotope.
Answer:
When an atom that has no change loses two electrons, it becomes "positive ion".
Explanation:
It is known that electrons hold a negative charge. So, when the negative charge that is electrons are taken out an atom then the number of electrons become less in number as compared to the number of protons. Hence, the atom attains a positive charge.An isotope is formed when an atom shows same number of protons and different number of neutrons. So, when an atom loses 2 electrons there will be no change in the number of neutrons. Therefore, an isotope will not form.Thus, it is concluded that when an atom with no charge loses two electrons, it becomes a positive ion.
Answer:
B. Two racehorses with desirable traits are bred to produce a superior racing horse.
Explanation:
Artificial selection is also called selective breeding. In artificial selection, two organisms having desirable characters are allowed to breed with each other in order to produce a specie having good characteristics or better from their parents in many ways. For example, two racehorses which contains desirable traits are allowed to breed to produce a better horse.
PNS controls this response
The portion of the system that's outside the brain and medulla spinals. Abbreviated PNS. The nerves within the PNS connect the central system (CNS) to sensory organs, like the attention and ear, and to alternative organs of the body, muscles, blood vessels, and glands.
Papillary response could be a physiological response that varies the scale of the pupil, via the optic and cranial nerve.
O receptor de dor indica que algo está tocando a pele de maneira agressiva e prejudicial ao corpo.
Step by step explanation is Vitamin B-6