A gene
is something that is passed onto you, pretty much like this: My dad had blonde hair and green eyes, and that's what I got. My mom was Brown haired and blue eyes. I got her eyebrows and mouth. Get what im saying? It's something that is passed down to you.
Mid-sagittal plane
hope this this helpful ;-)
Cannabis maybe. Hope this is for school lol
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Molecule
Organelle
Cell
Tissue
Organ
Organ system
Organism