read this sentence from the article. i think it is vital to consider the scientific definition of life, however, and to take the recent excitement with a grain of salt. explain the meaning of the phrase “with a grain of salt” as it is used in the sentence. use details from the article to support your answer.​

Spider crabs live in the shallow regions of the ocean floor. algae tend to grow on the surface of spider crabs. the algae provide the crabs protection from predators by camouflaging them. the spider crabs give the algae shelter. what does this description suggest? 1. the algae are parasites of the spider crabs. 2. the algae and the spider crabs have a mutualistic relationship. 3. the spider crabs are commensals, and the algae are parasites. 4. the spider crabs benefit from the algae living on them. 5. the spider crabs are parasites of the algae.