Answer:
A
B
D
Explanation:
The Digestive System, the Immune System and the Reproductive System have common functions because they all do the same thing. They all digest food but in their different ways
Attachment of acetyl groups to histone promotes transcription.
This mechanism is known as histone acetylation and it is a part of gene expression. The lysine residues inside the N-terminal tail from the histone core of the nucleosome are the substrate for enzymes-histone acetyltransferase which transfer an acetyl functional group from another molecule. Acetylation removes the positive charge on the histones and thus decrease the interaction negatively charged phosphate groups of DNA. As a result, chromatin becomes more relaxed structure and transcription is promoted.
Answer:
They cut a peice of the worm
Explanation:
Answer is C
Hope this helps
Answer:
The respiratory system is the network of organs and tissues that help you breathe. It includes; your airways, lungs, and blood vessels. The muscles that power your lungs are also part of the respiratory system.
Explanation:
