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.
Cells know how to differentiate through a process called gene expression. It’s a specific combination of genes that are turned on and off.
The answer is A, as bears don’t eat deer, but they both eat plants.
Heterotrophs are animals.
Autotrophs are plants.
Hope this helps!
Cells produced when the mutated cell divides.
I think it’s zero, it might be zero
