Answer:
I'm a little on the fence, but I believe that organelle is either a paramecium or a euglena!
Explanation:
helpful little image link for comparison!
[ source for organelle image comparison]
https://media.istockphoto.com/vectors/vector-illustrationof-unicellular-organisms-amoeba-proteus-paramecium-vector-id1225645059?k=20&m=1225645059&s=612x612&w=0&h=SzUbQXS7I0hh2NBcl5xsEKhPj21ebx6uRZHda7k0-hU=
Prokaryotic cells because they don't have a nuclei.
At least 12 million years ago?
Step 1: 405kpa times 4cm^3 so 405/4=1620
Step 2: 1620 divide 6 so 1620/6=270
The final answer is 270Kpa