Yes, all ecosystems need to have a top predator (quaternary consumers) so that the cycle of the food chain can stay complete.
The answer is nucleus
not sure
<h2>Epigenetic modification </h2>
Explanation:
A methyl group bound to DNA inhibits transcription of a gene describes an epigenetic modification
Epigenetic modifications include: histone modifications and methylation
Methylation is the main cause of gene silencing for example methylation at lysine residue of histone protein, H4 leads to gene repression
Small silencing RNA molecules are of two types: micro RNA (miRNA) and small interfering RNA (siRNA)
miRNA directs degradation of target mRNA when makes perfect complementary while suppress mRNA translation when makes partial or imperfect complementary
siRNA primarily mediates degradation of target RNA
<span> it's a component of the outer walls of spores and pollen grains, and Bryophytes are mosses, so... I would assume that it's something that protects moss spores.</span>
