Bacteria cells, I believe so.
Answer:
Organisms use camouflage to mask their location, identity, and movement. This allows prey to avoid predators, and for predators to sneak up on prey. ... The physical characteristics of the organism are important. Animals with fur rely on different camouflage tactics than those with feathers or scales, for instance.
Explanation:
The atomic number of protactinium is 91
Some features might be feathers, thin bones, they are lighter to make flying easier.
