The answer is B:
A chipmunk takes shelter in and oak tree and is protected from predators, and in return disperses seed around the area
Blood? I think cause it flows through everything in the body
No a solution is not a combination a combination is when you combine something
Answer:
La energía del organismo vivo no se puede perder ni ganar del entorno externo.
Explanation:
Ans.
Chromatin molecules are made up of DNA and histone proteins. Modification of chromatin structure include covalent, post-translational changes in histone proteins, present in chromation. Acetylation and methylation are two important histone modifications that affect structure of chromatin molecules.
Acetylation involves addition of an acetyl group to histones that increases transcription of DNA by loosen the association between DNA and nucleosome.
Methylation involves addition of a methyl group to histones that results in condensation of chromatin molecule and thus, decreases transcription of DNA.
Both acetylation and methylation are reversible processes.
Many chromatin modifications are genetic, means they can pass from one generation to another generation, called epigenetic modifications.
Thus, options B), C), D), E), and F).
