A sugar<span>-phosphate </span>backbone<span> (alternating grey-dark grey) joins together nucleotides in a </span>DNA<span> sequence. The </span>sugar-phosphatebackbone<span> forms the structural framework of nucleic acids, including</span>DNA<span> and RNA. This </span>backbone<span> is composed of alternating </span>sugar<span> and phosphate groups, and defines directionality of the </span>molecule<span>.
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Answer:
d
Explanation:
its the only one where behavior is involved
No because the child can get somethinf later on in their life that wasnt spotted before
Answer:
If the surface barriers of innate immunity, such as the skin or mucous membranes are breached, the second line of defense in innate immunity is (are) the: lymphocytes
Explanation:
The lymphocytes direct and regulate immune responses. Specifically, B lymphocytes produce antibodies to fight against bacteria, viruses and invading toxins. T lymphocytes destroy the body's own cells that have been infected by viruses or that are cancerous.
