How and When can a mask be NOT be effective?

Autolysis is a process in which damaged or dying cells digest themselves via reactions catalyzed by their own digestive enzymes duo to rupture of a specific organelles. which organelle do you think is involved in autolysis? explain

If birth rates fall below the replacement level, then a country is in which stage of demographic transition? a. urbanization/industrialization b. mature industrial c. postindustrial d. pre-modern

Which barrier to economic development is shown in the following examples? i. the high rate of hiv infection in underdeveloped nations ii. the use of children as soldiers in uganda’s army in the early 2000s iii. low literacy rates in underdeveloped nations with limited exposure to adequate education a. foreign debt b. political instability c. widespread disease d. low levels of social welfare