<span>The information that
determines what the organism will be like is the DNA molecule. It is made up of
nucleotides. These nucleotides are linked chains. The four types of bases found in nucleotides are: adenine,
thymine, guanine, cytosine. The order of the bases determines what instructions are contained on the strand. For example, say a strand shows
ATCTT and say that presents in a person who has blue eyes while other eye
colors would be a different code. Wach piece of code determines what the organism will be like based on those pairs.</span>
Chemokines act as chemoattractants. They lead <span>to the migration of immune cells to an infection site so they can target and destroy invading bodies such as microbes. Hope this helps.</span>
A closed system is a system that makes no physical or chemical exchanges with its environment. Of these systems provided as choices (tree, human, clock, car), only a clock does not make exchanges with the environment, except for energy.
Therefore, of that list, only a clock would be a closed system.
Hope that helped! =)
A molecule is made of more than one atom of differing elements that can be simplified while an element cannot be simplified because it is only one atom of one type of element.
Answer:
mosses
Explanation:
Simple species that can tolerate the often- harsh environment become established first. These organisms help enrich the soil, allowing other species to become established. The first organisms to appear in areas of primary succession are often mosses or lichens.
