Science is hard. Can someone please help me

Which layer will become saturated first when rain falls?

The table lists the observations students made about four specimens under a microscope. based on these observations, what specimens did the students examine? animal plant virus prokaryote cell membrane present ribosomes present lysosomes present nuclear membrane present cell wall present ribosomes present nuclear membrane absent cell wall present ribosomes present nucleus present large vacuole present reproduces inside of a cell nucleus absent rna present 2019 edmentum all rights reserved intl

Which enzyme is responsible for “unzipping" the dna by breaking the hydrogen bonds between the nucleotides?