Some creatures such as crabs collect water and store it in their bodies. they use dissolved oxygen in the water to breathe. which intertidal zone would this adaptation suit?
crabs are well adapted to surviving in the intertidal zone.

hide tide

Explanation:

https://www.enchantedlearning.com/igifs/Intertidalzone.GIF

this picture shows that crabs in the intertidal zone primarily stay in the hide tide zone

if the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.