What?? what are you trying to say please be more specific
Answer:
My guess would be H₂O/ water, since osmosis is a form of passive transport and I can't see the model the question references. Gases like O₂/ oxygen, CO₂/ carbon dioxide, and simple sugars like glucose can also pass through a cell membrane with passive transport though.
Answer:
breed a has an average of 9 pounds
breed b has an average of 12.125 or 12 (rounded) pounds
Factors you may describe could be, food sources, environment, and climate could have changes in the characteristics of different breeds.
Having controlled factors, having 2 baby rabbits of the same breeds and monitoring the same food and water, observations and data can be collected, done multiple times data can be complied and used to theorize
( A ) the gallbladder added bile which helps break down fats