These sorts of studies can help researchers determine the relative importance of nurture and nature in determining a trait. Nature here would refer to genetics passed down to an individual from its parents, whereas nurture refers to the environment the individual is exposed to.
1st of all arteries have a thick walls while veins have have a thin wall
Answer to why arteries have thick walls: arteries have thick walls because blood flows inside them with high pressure and with a high speed
A prokaryotic cell does NOT have a membrane. Eukaryotic does on the other hand. A great example of a Prokaryotic cell is bacteria.
Answer:
if the material is a conductor then it is able to effectively transfer thermal energy