Normally a 10× drop for each trophic level, so I'd say 2,000 kilocal.
The answer is the first one: “...attract each other.”
Answer:
DNA is the genetic information used to make proteins, and it contains the hereditary traits of organisms. There are two types of DNA: mitochondrial DNA, which you can only get from your mother, and nuclear DNA, which is a combination of both your ancestors' DNA.
Explanation:
<span>There are two structures that would be found at a passive continental margin. These structures are continental shelves and continental slopes.</span>
Oxidized hydrogen does not participate in mineral formation.