Which of these is a disease caused by a bacterium? herpes syphilis aids huntington's disease which of the following is not a vascular plant? conifer fern moss flowering plant

Syphilis is a sexually transmitted disease caused by the bacterium Treponema pallidum.

Moss is not a vascular plant as it does not have a phloem or xylem to transport water and food.

The return of the wolf to yellowstone national park will probably affect the bird population to some degree, not significantly. while wolves will hunt birds when necessary, they prefer to hunt larger prey. the bird population will most likely only be affected when hunting is scarce for the wolves. birds of prey will also probably not be affected as much as other birds who spend more time on the ground hunting for food as the tend to spend more time in the air or in trees since they do not need to stay on the ground for long due to the nature of the way they hunt.