I think the answer to this is Invalidate, because the energy should not enter an open system<span />
Isotopes are atoms of the same element with the same number of protons and different number of neutrons.
<h3>What are isotopes?</h3>
Isotopes are any of two or more forms of an element where the atoms have the same number of protons, but a different number of neutrons within their nuclei.
As a result of this, atoms of isotopes will have the same atomic number but a different mass number.
Examples of isotopes are
- Carbon-12 and Carbon-14
- Nitrogen-14 and Nitrogen-15
Therefore, isotopes are atoms of the same element with the same number of protons and different number of neutrons.
Learn more about isotopes at: brainly.com/question/11680817
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Because with a DRI we know the average or ballpark estimate on hwo much of a certain nutrient we should take in/consume per day. This goes for all the macronutrients as well as the micronutrients. Knowing this information, we can guarantee a healthy and balanced diet.
Competition and predation
The kidneys.
The kidneys keep blood isotonic by removing excess salt and water through urine.