Membrane proteins can serve a variety of key functions:
Junctions – Serve to connect and join two cells together.
Enzymes – Fixing to membranes localises metabolic pathways.
Transport – Responsible for facilitated diffusion and active transport.
Recognition – May function as markers for cellular identification.
Scientist can look at DNA sequences to determine if they are related, A scientist named Darwin proved that all species are related and descended from one common ancestor.
light is a form of energy expression, so knowing the law about energy conservation, we can conclude that the light absorbed by the dark object doesn't disappear but turned into heat, which is kept or emitted by the dark object.
So Yes,
the darker the color, the better the heat radiation is
They are metals. Metals are the most common.