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anna filled completely four identical cups with different liquids. three of the cups were filled with freshwater from different locations on land and one cup was filled with ocean water. the liquid in the four cups was boiled completely. the table below shows the mass of salt obtained on boiling the liquids completely.

cup mass of salt (in gram)
1 25
2 18
3 35
4 29
into which of these cups did anna most likely fill ocean water?

cup 1
cup 2
cup 3
cup 4

Even though the ostrich is a flightless bird, ostriches still possess wings that stretch approximately two meters across when fully extended. scientists speculate that when dinosaurs became extinct, some of the birds that lived during that time became land dwellers since they were able to consume the food that the dinosaurs once ate. over time, these species grew larger and heavier. eventually, the ostrich species became too big to fly. the wings found on ostriches are known as a. analogous structures. b. homologous structures. c. vestigial structures. d. symmetrical structures.