What of the following is not a characteristic of life?
maintains homeostasis
composed of cells
composed of atoms
carries out metabolism

What are antigens and antibodies? how are they involved in the body’s response to incompatible blood?

Based on her survey, which advertising mediums will work best to publicize leslie's in-store specials?

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.