Answer:
Y most likely represents springs.
True, Methane is a greenhouse gas
ANSWER:
D
EXPLANATION:
Both of their temperatures stay about the same throughout the experiment.
A- Temperature.
Hope this helps!<span />
<span>The phospholipid bilayer is a thin polar membrane made of two layers of lipid molecules. ... Biological bilayers are usually composed of amphiphilicphospholipids that have a hydrophilic phosphate head and a hydrophobic tail consisting of two fatty acid chains.</span>