Answer:
nitrogen is an essential nutrient for sustaining life on earth, without it, plants would die, then herbivores due to starvation, and so on
Explanation:
The answer would be about 18.
<span>Christmas trees give, in fact, a lot of oxygen and in return they consume a lot of carbon dioxide.
</span><span>The oxygen produced by each tree depends on several factors, but there is a estimative. In about 1 acre of land, there are enough trees to produce the oxygen necessary for 18 people to breath during a whole year!
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Brain. :) that's your answer haha
<span>This is probably caused by ill-fitting shoes putting pressure on certain areas of the foot and would be called a Corn.
In this context, corn refers to some sort of calluses that appear if we constantly use ill-fitting shoes. The pressure that caused by the ill-fitting shoes will create some sort friction that will make the skin on that area become thicken.</span>
Taxonomy<span> produces a hierarchy of groups of organisms;A </span>phylogenetic tree<span> is a hypothesis that depicts the evolutionary..
</span>Cladistics <span>is an approach to </span>biological classification<span> in which </span>organisms<span> are categorized based on shared derived characteristics that can be traced to a group's </span>most recent common ancestor<span> and are not present in more distant ancestors. Therefore, members of a group are assumed to share a common history and are considered to be closely related.</span><span>
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