Which of the following statements is true about immigration and emigration
a) immigration is balanced by emigration
b) immigration includes the birth rate, emigration includes the death rate
c) immigration and emigration can occur as a result of a change in climate
d) immigration is influenced only by abiotic factors and emigration only by biotic factors
e) immigration is a steady increase in the population emigration is a stead decline

for example, no new evidence will demonstrate that the earth does not orbit around the sun (heliocentric theory), or that living things are not made of cells (cell theory), that matter is not composed of atoms, or that the surface of the earth is not divided into solid plates that have moved over geological timescales .

essentially, one bacterial cell splits into two daugurer cells. bacterial offspring don't need or get care from their parents because they are in a sense their own parents. that said, some bacteria can and do depend on other bacteria especially in harsh environments such as bacterial microfilms in hot water tanks.