Its replicated dna is always replicated
Deoxyribonucleic acid (DNA) is the hereditary material that lies within the nucleus of all cells in humans and other living organisms. Most of the DNA is placed within the nucleus and is called nuclear DNA.
A chromosome is made up of two chromatids which are joined by the centromere. The chromatids separate from each other during mitosis to form two new chromosomes. The DNA making up a chromosome is dispersed as chromatin.
Under a microscope, chromatids look like little dots and chromosomes are lines.
There are three types of primary blood vessels and these are capillaries, veins, and arteries and the function of capillaries to connect arteries and veins, the function of veins to carry blood back to heart, and function of arteries is to take blood away from heart.
<h3>What is blood vessel?</h3>
A structure whose shape is tubular that contain blood through the tissues as well as organs and these are of three types, the capillaries which is known as smallest blood vessel and the function in to connect vein and arteries. The second type of blood vessel is veins that carry blood back to heart. The third type is artery that carry blood away from the heart.
The blood vessel may contain either pure or impure blood and it plays a vital role in the proper functioning of body.
Therefore, there are three types of primary blood vessels and these are capillaries, veins, and arteries and the function of capillaries to connect arteries and veins, the function of veins to carry blood back to heart, and function of arteries is to take blood away from heart.
Learn more about blood vessel here:
brainly.com/question/4601677
#SPJ4
Answer:
without them complex organisms cannot perform different functions
Explanation:
apex