Answer:
Um, well the formula for population growth (is <em>that </em>what you are asking?) is
(birth rate + immigration rate) - (death rate + emigration)
Explanation:
emigration is animals moving out and immigration is animals moving into the population.
A planting trees around a farm
Explanation:
Trees majorly help us out, by converting carbon dioxide into oxygen. If you cut down trees that releases carbon dioxide out into the air.
Heart,vessels,circulating fluids
Management because it is holding back how many can be sold.