The atoms found in carbohydrates are usually found in a 1:2:1 ratio (C1H2O1). What does this mean?

According to the cladogram, which organisms have roundworms as a common ancestor?

What will happen if two of the base pairs of the stand of the dna are switched

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.