The sugar and phosphate portion of the nucleotides are found as segments of the rails on the DNA twisted ladder.
Abiotic means non-living. So the correct answer is "the lack of oxygen in coastal waters"
The plant has the genotype ssyy. (Uncapitalized because they are recessive genes, not dominant.)
The difference in an area with high concentration and an area with low concentration is called concentration gradient.
<h3>What is concentration gradient?</h3>
Concentration gradient refers to the difference between the concentrations of two solutes in a solution.
A solution usually contains an area or region with higher concentration and an area with lower concentration.
The difference between these two areas of different concentrations is referred to as a concentration gradient.
Learn more about concentration gradient at: brainly.com/question/13050811
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cells came from nonliving things.
