Answer:
long-term carbon; short-term carbon
Explanation:
The long-term carbon cycle, which takes millions of years, involves geological processes and carbon reserves that bury organic matter and exchange of carbon with rocks as well as formation of fossil fuels. On the other hand, short-term carbon cycle involves biological processes such as exchange of carbon dioxide between the sea and the atmosphere, photosynthesis, respiration, which occur within shorter periods.
Calcium provides strength as a element, though it is present as calcium chloride on the exoskeletons.
The correct answer is A. Phenotypes
Explanation:
In genetics, the observable traits of an organism that includes behavior, physical traits, biochemical properties, etc. are known as phenotypes. These traits depend on both the genes of the organism (genotype) and the influence of the environment. Due to this, organisms of the same species with a similar genotype can display different phenotypes. This occurs in the case of Patrick and Michael as their observable traits or phenotype is different despite they are brothers. Thus, the observable characteristics are the phenotypes of an organism.