How many O2 molecules are required for to undergo cellular respiration?

What is the average speed of a car that traveled 300.0 miles in 5.5 hours

Which was most likely an effect on society that resulted from improvements in blood handling during world war i and world war ii?

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.