Pistol shrimps and gobies depend on each other for their shelter and protection, and they have a beneficial relationship with each other. What’s this symbiotic relation called?

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What are charcteristics of lithosphere?

The fruit of a certain plant is sweet and fleshy. the seeds of this plant have a seed coat that is fairly tough. the seeds germinate better if they are exposed to acid, or scarification. what is the most likely type of dispersal for this seed? water animal wind