Answer: Lysosomes is the answer
Explanation:
Lysosomes are cellular organelles with thin-wall bodies, and serves as sacs containing enzymes that are mainly respiratory in function, thus the enzymes digest substances taken into the cell to generate energy as ATP
D. I think but I’m not 100% on that
Answer:
I read about this earlier im pretty sure its The "They need oxygen" part
Explanation:
:)
Answer:
The heart is a muscular organ about the size of a fist, located just behind and slightly left of the breastbone. The heart pumps blood through the network of arteries and veins called the cardiovascular system.
Some arteries carry oxygenated blood just as some capillaries do.
Some veins carry deoxygenated blood just like some capillaries do.
