Which microbial virulence factor is most important for attachment to host respiratory tissues?
adhesins
lipopolysaccharide
hyaluronidase
capsules

Which blood cell spend most of their time in the lymphatic system?

"your temperature analysis reveals a pattern with coldest temperatures located to the portion of the map."

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.