Shleiden and Theodor Schwann were the first to recognize that all plants and animals are composed of cells.
Hope this helped :)
Dichotomous Key with smiles
1. Teeth visible ....................go to 2
.....Teeth not visible .................go to 4
2. Has a wide, toothy smile .......Smilus toothyus
....Is not smiling ......................go to 3
3. Visibly crying .................Smilus dramaticus
.... Frowning .......................Smilus upsettus
4. Eyes are symmetrical .... go to 5
....Eyes not symmetrical .....go to 8
5. Eyes shaped like hearts ..... Smilus valentinus
....Eyes are shaped as ovals .....go to 6
<span>
</span>6. Smiling, happy face ...... Smilus traditionalis
.....Not happy, frowning or other .....go to 7
7. Mouth curved down, frowning .... Smilus saddus
.... Mouth is a small circle .................Smilus suprisus
8. Has a pirate eye patch ...............Smilus piratus
....Does not have eye patch ............ go to 9
9. One eye is much larger than the other eye ..... Smilus mutatus
One eye is winking .................Smilus winkus
I don’t think it’s insane, it’s just how is humans are. I don’t think it’s nice. I was very aware about the situation as a whole, bit it’s what people have been doing for years, like years and years. It’s kinda human nature
C. Combine with new atoms
This is how things are made, like oxygen (O2) and hydrogen (h2) combine to make water (H2O)