Bonjour,
1. Arteries carry blood from the heart to the rest of the body, whereas veins carry blood from the rest of the body back to the heart.
2. Almost all arteries carry oxygenated blood and almost all veins carry deoxygenated blood.
3. Arteries have a thick elastic muscle layer, whereas the muscle layer for veins is much thinner.
Answer:
The law of conservation of mass.
Explanation:
This law talks about that the mass is not lost during the reactions, but is maintained.
True
The definitions of positive don’t state any negative meanings, therefore it must be a completely “good” or “nice” meaning word
Hope this helps you