Asthma is an example of
a. the immune system attacking its own body cells.
b. the immune system overreacting to an antigen.
c. an autoimmune disease.
d. an infection.

Viruses ) manufacture their own atp, proteins, and nucleic acidsb) use the host cell to copy themselves and make viral proteinsc) use the host cell to copy themselves and then viruses synthesize their own proteinsd) metabolize food and produce their own atp

This anterior tooth has a single root and sharp incisal edges. it has mamelons upon eruptions. this tooth is a a. maxillary central incisor. b. mandibular central incisor. c. mandibular canine. d. maxillary lateral incisor.

Summarize four pregnancy-prevention methods. discuss the benefits effectiveness and risks of each