Enzymes are proteins that impact chemical reactions in cells. Which statement describes the conditions under which enzymes are most effective? a. in a wide pH range and
small temperature range
b. in a wide pH range and wide temperature range
c. in a small pH range and a wide temperature range
d. in a small pH range and a small temperature range

1. emigration the movement of people from one place to another 2. immigration a situation in which resources are being used up at a faster rate than they can be replenished 3. migration the leaving of one's homeland to settle in a new place 4. overpopulation the movement of people to a new country 5. sustainable development a situation in which the birth rate is not sufficient to replace the existing population 6. underpopulation the ability to meet current needs without reducing the ability to meet future needs 7. unsustainable development the increase in the population of a city 8. urbanization a situation in which the number of people exceeds the available natural resources in an area

Acommon kind of mechanical weathering is called

Apatient has an open displaced fracture of the second cervical vertebra. this is her fifth visit and the fracture is healing normally. what icd-10-cm code is reported?