I think it’s a trait is a characteristic
Not all of those offspring are likely to live to adulthood, whereas the parent penguin can pay attention to the one chick it has so it is more likely to live to adulthood
Structurally
DNA and RNA<span> are nearly identical. As mentioned earlier, however, there are three fundamental </span>differences<span> that account for the very </span>different<span> functions of the </span>two<span> molecules. </span>RNA<span> has a ribose sugar instead of a deoxyribose sugar like </span>DNA.RNA<span> nucleotides have a uracil base instead of thymine.
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p.s (google helped)
The answer is c because they are easily destroyed and washed away during food storage preparation