The population growth rate in 2017 was 0.7%. If population growth includes changes due to natural increase and changes due to migration, does the stated population growth rate line up with what you would expect? A Yes No
20 Demographic Overview - Custom Region - United States Demographic Indicators 1995 2005 2015 2017 2025 Population Midyear population (in thousands) 266,278 295,517 321,040 325,719 347,335 Growth rate (percent) (NA) (NA) 0.8 0.7 0.7 Fertility Total fertility rate (births per woman) (NA) (NA) 1.9 1.9 1.9 Crude birth rate (per 1,000 population) (NA) (NA) 12 - 12 - 12 Births (in thousands) (NA) (NA) 3,981 3,941 4,185 Mortality Life expectancy at birth (years) (NA) (NA) 80 80 81 Infant mortality rate (per 1,000 births) (NA) (NA) - 6 6 5 Under 5 mortality rate (per 1,000 births) (NA) 7 7 6 Crude death rate (per 1,000 population) (NA) (NA) 8 8 9 Deaths (in thousands) (NA) (NA) 2,697 2,736 2,970 Migration Net migration rate (per 1,000 population) (NA) (NA) - 3 3 4 Net number of migrants (in thousands) (NA) (NA) 1,092 1,107 1,309
The heartbeat has two specialised areas of muscle (the sa node and the av node) that control and synchronise the heartbeat. The rhythm of relaxation and concentration of the pacemaker sets the rythym of the heartbeat.
The one that is not a piece of molecular evidence supporting the endosymbiotic theory is B) The mitochondria and chloroplasts are much different in structure in bacteria.
