Answer:
Option (A) and (C).
Explanation:
Gene regulatory mechanism are important for the regulation of the transcription and proper expression of genes. Different regulatory mechanisms are present in prokaryotes and eukaryotes.
The prokaryotes do not require the multiple general transcription factors where as the eukaryotes have different transcription factors like TFIID, TFIIH and TFIIA. The DNA is packed around the histone protein that form chromatin in eukaryotes. The chromatin packaging includes methylation, ribosylation with the help of enhancers and silencors. The chromatin is absent in case of prokaryotes.
Thus, the correct answer is Option (A) and (C).
Well it has to go through fixation and after that it can be useful for living things
Answer:
C. providing protection for the internal organs
Explanation:
The muscular system is made up of the muscles of the body. The main function the muscular system is that it aids movement. Muscles attached to bones and to one another helps the body during locomotion.
The muscular system also serve to protect the internal organs from damage. Some of the abdominal muscles where there are no bones protects the organs located in that part of the body.