Which cell part distinguishes a eukaryotic cell?
a.
dna
b.
nucleus
c.
cell wall
d.
cell membrane

B. Nucleus

Explanation:

The main difference between eukaryotic and prokaryotic cells is that eukaryotic cells have a nucleus.

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The answer is B

Explanation:

the device is called “ rocket engine”

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.