If you talk about the process of fission in the nuclear field then the most used is U-235 because is the easiest to use. Have in mind that the majority of uses of uranium is U-238 but the easiest to be used is U-235
Skin cells are made of proteins, water, and fat. But brain cells are only made up of amino acids, which ca make protein.<span />
If a genetic disease is recessive, a person must inherit the recessive gene from both parents. If they were to inherit a dominant gene, the disease would be over powered and unapparent in the offspring.
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Answer:
they all have solid cores of rock, metal, and maybe even ice, but these planets are totally enveloped in thick atmospheres of gas. Hydrogen and helium (the two lightest elements) make up most of the gases in the atmospheres of these planets
Explanation:
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