In biology, histones are highly alkaline proteins found in eukaryotic cell nuclei that package and order the DNA into structural units called nucleosomes. They are the chief protein components<span> of </span>chromatin<span>, acting as spools around which DNA winds, and playing a role in </span>gene regulation<span>.</span>
A farmer who grows what his family needs to survive is a producer
-Melting Icebergs, glaciers, and ice sheets
-sea level rise
-wildfire
Is this a question or answer..I can't understand