Adenine forms two hydrogen bonds with thymine in DNA while three hydrogen bonds are formed between guanine and cytosine.
Thymine and cytosine are pyrimidines because they have a single ring structure. Adenine and guanine are purines because they have a double ring structure.
The wild salmon has the capability of reproducing quickly, which makes wild salmon a renewable resource.
<h3>What do you mean by Renewable resources?</h3>
Renewable resources may be defined as those resources that are not exhausted and deliver endless energy.
Wild salmon can be taken as one of the chief sources of food that provides energy. This form of energy may lead to renewable energy because it is endless, as the reproduction rate of wild salmon is fast with large clutch size.
Therefore, the wild salmon has the capability of reproducing quickly, which makes wild salmon a renewable resource.
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Two species of sea urchins live practically side-by-side in sandy bottoms. The two species appear to have the same diet: drift seaweeds and other bits of organic matter. They can live in the same environment without competing.
As it compels them to live in the same environmental surroundings so the characteristics of living nature also get developed as their current following situation that's helping them to get the same food & habitat.
Increased atmospheric carbon dioxide will diffuse to the ocean water (since normally, there is lower concentration of dissolved carbon dioxide in the ocean water). The dissolved carbon dioxide takes into the form of carbonic acid thereby increasing acidity of ocean water. More often than not, the acidification of ocean water leads to detrimental results especially in marine organisms that are pH sensitive such as coral reefs and many invertebrates.
