Answer:

Explanation:
The formula for density is ρ
(where
represents mass, and
represents volume).
With this formula, we can calculate the density of the object:
ρ 
Hope this helps :)
Answer:
Artery : carries blood away from the heart, largest blood vessel in diameter
Vein : carries blood to the heart, has a thin endothelial layer.
capillary : exchanges nutrients with tissues, single walled.
Explanation:
Arteries are blood vessels that transport blood away from the heart to the body. They are the largest blood vessels in the body and have thick elastic walls.
Capillaries are blood vessels that carry blood away from body and exchange waste, nutrients, and oxygen with cells or tissues. Capillaries are smallest blood vessels and their walls contain only a single layer of tissues.
Veins are blood vessels that transport the blood from the body to the heart. Veins have less connective and smooth muscle tissue that make veins' walls thinner that walls of arteries.
First generation offspring don't consistently have the phenotype of a specific gendered parent. It depends on the overall inherited genotype.
Biological macromolecules are important cellular components, they have a wide array of functions necessary for survival and growth of living organisms. There are four major classes of biological macromolecules
-carbohydrates
-lipids
-proteins
-nucleic acids.
Insulin controls blood sugar by lowering it, glucagon tells the liver to release its stored sugar into the blood stream, increasing blood sugar.