The beginning of spring in the northern hemisphere is marked by the

The beginning of spring in the Northern Hemisphere is marked by the Vernal (spring) equinox. I hope this helps!

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.