Answer:
Oxytocin and antidiuretic hormone
It's the same distance away from the image. So, here is an example. Your standing 5 cm. away from the mirror. The image is going to be 5 cm. away in the mirror.
Based on the image, the structure that carries impulses to the cell body is I. This part of the cell is called an axon terminal. They are each separated from a neuron by a gap called a synapse. While the structure that carries impulses away from the cell body are III. This structure is called the axon.
They need an independent variable, in this case it should have been the fish food. Everything should be identical except the fish food, from what I read , it doesn't say anything about what type of food they used, or the dosage.
They would use a membrane transport protein.
There are several different types that it can use, but large macromolecules use these membrane transport proteins like channels to enter and leave the cell
