Harold is currently working for the fire protection services. he ensures that the fire department’s apparatus and appliances are clean. he also hoists and takes down the flag at the fire department. which firefighting career role does harold perform?
a.
federal firefighter
b.
probationary firefighter
c.
municipal firefighter

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.