Answer:
2
Explanation:
The two DNA strands intertwine around each other to form a double helix.
The immune system is the bodies defense against invaders and is located in all body tissues with concentration in the mucosal surfaces and skin.
Answer:
1. Nucleoid
2. Plasmid
Explanation:
Prokaryotes are groups of organisms characterized by the lack of a membrane-bound nucleus in their cell. Due to this, the genetic material (DNA) of prokaryotes are found naked i.e. not housed. The DNA of a prokaryote is arranged in a single coiled chromosome located in a region of the cell called NUCLEOID.
However, some prokaryotes e.g. bacteria carry genes on extrachromosomal pieces of circular DNA called PLASMID. Plasmids carry certain genes like antibiotic resistance genes.
<span>Sugar is carbohydrates, fats are lipids, amino acids are proteins, and nucleotides are nucleic acid. They're all about the same healthiness because everyone needs all four for their diet. Carbohydrates give us energy, lipids provide energy, protein builds our structure, and nucleic acid stores our genetic information.</span>
