you decide to quit your £60,000 per year job as an information technology specialist and illustrate children’s books. at the end of the first year of illustrating, you have earned £20,000. you also spent £5,000 for paint and paper. your economic profit in the first year as an illustrator is:

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.