Age-related changes in the respiratory system may cause 1. decrease in vital capacity of as much as 35% by age 70 due to decreased tissue elasticity. 2. an increased incidence of pneumonia and bronchitis because of decreased alveolar macrophage activity and ciliary action in the respiratory tract. 3. an increase in tidal volume due to damage to alveoli and decreased surfactant production.

Who established the peoples republic of china in 1949

20 points the two basic principles of economics are (choose two) question 2 options: a. the wants of society and individuals are limited. b. the wants of society and individuals are unlimited. c. the resources of society are limited. d. the resources of society are unlimited.

Neighborhood and community characteristics: the social ecology approach emphasizes the view that certain social and physical characteristics of neighborhoods and communities influence the likelihood of committing deviance and crime.imagine that you are in a position as a community leader. there are several neighborhoods in your community with: high poverty rates low quality housing single parent households which issue would you address first, and what strategies would you propose to address this issue?