The temperature increases as you go deeper in the aquatic system.
It might be an astrocyte, but I'm not sure.
1- golgi bodies
2- cell membrane
4-nucleus
5-mitochondria
7-endoplasmic reticulum
8-vacuole
i know those ones are right.
3 and 6 are either lysosome and vacuoles but i don’t remember how to tell the difference