Answer:
Villi, alveoli and nephrons are similar as :-
B. They provide large surface areas for molecular exchange.
Salt<span> works to </span>kill slugs<span> by using the osmosis they depend on to survive to dehydrate them of the water that is within their body. </span>Slugs<span> depend on osmosis because they pick up water from areas surrounding them to hydrate themselves.</span>
