Viruses contain the following two components: 1) a nucleic acid genome and 2) a protein capsid
It can be described as fluid mosaic because its moveable but yet keeps everything in place.
A mutation in your dna can sometimes cause genetic disfunction and potentially lead to cancer. It’s essentially the same thing with carcinogens, but with a mutation I can be a positive or negative affect
Secondary Succession was seen in the ecosystem as a primary ecosystem community, after being destroyed was replaced by a 2nd one. so the answer is B, if i'm not mistaken.