Answer:
A. Student A because it requires a hypothesis
A flagellum is a whip-like structure that allows a cell to move. They are found in all three domains of the living world:bacteria, archaea, and eukaryota, also known as protists, plants, animals, andfungi. While all three types of flagella are used for locomotion, they are structurally very different.
hope it helps
When the concentration o molecules inside a cell is different form the concentration of molecules outside a cell, we can either call it hypertonic or a hypotonic solution, and the difference between the two concentrations is called a concentration gradient.
Hypertonic - name given to a solution that has a bigger concentration than the concentration in a cell.
Hypotonic - name give nto a solution that has a smaller concentration than the concentration in a cell.
Hope it helped,
BioTeacher101