The two differences you see when comparing the four chambers of the heart is that the arteries have a thicker wall and veins have thin walls and that the arteries carry oxygenated blood away from the heart which means they get more pressure than veins.
Examples of physical changes in properties are melting, transition to a gas, crystallization, etc
Regulation- the process of the blood sugar becoming regulated by insulin (glucose).
Answer:
I believe it's d... or b
Explanation:
So I'm pretty confident that it's D seeing how it substitutes or deletes but it's only ONE gene...
Hydrosphere- oceans, lakes, glaciers, rivers, streams, and groundwater
Biosphere- all of earths living things
Atmosphere- air surrounding earth
Geosphere- earths interior, rocks, minerals, and landforms