Answer:
C. Diffusion and no energy needed.
Explanation:
A - Passive transport doesn't require energy.
B - Osmosis would be if the 25% H2O went into the 82%
D - Active transport doesn't apply because molecules aren't moving across into a higher concentration.
Diffusion is when parts of the 82% go into the 25%.
The answer is that they do not live on or in the body of a host.
I believe it is the retina that changes shape to focus on distant objects.
D genes are present on chromosomes and control traits in an individual