Yuto left his house at 10 a. M. To go for a bike ride. By the time yuto’s sister riko left their house, yuto was already 5. 25 miles along the path they both took. If yuto’s average speed was 0. 25 miles per minute and riko’s average speed was 0. 35 miles per minute, over what time period in minutes, t, starting from when riko left the house, will riko be behind her brother?.

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.