In DNA methylation, the most frequently methylated nitrogenous base is the cytosine. Its methylation is widespread in prokaryotes and eukaryotes. Its rate of DNA methylation differs greatly between different species like Arabidopsis thaliana which is 8%, Physarum, 4%, Mus musculus, 2.3%, and etc.
When a group of tissues work together to perform a particular role in the human body, they make up an organ.
False because zooming in makes it seem bigger so you can see more details. Zooming out would make it look farther away than what it really is