Which of the following is the name for the slippery outer layer of the alimentary canal? serosa
muscularis
submucosa
mucosa

Antibiotics are given when an std is caused by a virus. true or false

Why is it often difficult to get funding for local parks? a. state governments do not like to grant permits for local parks. b. federal regulations prohibit most fund raising. c. there is often a small tax base. d. federal funding cuts have all but stopped local construction of parks.

Which nutrients are a valuable resource in trying to build muscle?