What stage of photosynthesis is similar to citric acid cycle?

Which of the following occurs after a natural or unnatural disturbance in an ecosystem

Penelope studies how the structure and function of the nervous system is related to behavior. she is a psychologist

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.