Nico measured the water level in his pool every other day for two weeks. Which statement best describes the information shown by the scatterplot and trend line.
Water Height
6
5
4
.
3
.
5
7
8 9
10 11
12 13 14
Day
O As the number of days increased, the water level always decreased.
O As the number of days increased, the water level always increased.
O As the number of days increased, the water level usually decreased.
O As the number of days increased, the water level usually increased.

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.