The right option is; nucleotides
Nucleotides are the building blocks of DNA macromolecules.
Nucleotides are the building blocks (monomers) that make up a DNA molecule. Each nucleotide that constitutes DNA has three components which are; a five-carbon sugar (ribose or deoxyribose), a nitrogenous base, and a phosphate group. Nucleotides perform several important roles in the cell. They transfer chemical energy to cellular functions that require energy such as in proteins synthesis, and in the movement of the cell. Nucleotides are also involved in cell signaling.
Answer:
The Answer is D.
Explanation:
This is because a variable can be changed and isn't dependent on the problem.
Answer:
The main difference between organ and organelle is that organ is a large part of an organism, composed of tissues which perform similar functions whereas organelle is a specialized structure found inside cells, which carries out a specific life process. Kidney, heart, liver, lungs, and brain are the organs in humans.