Plankton lab-gives you 15 points
what biotic and abiotic factors regulate the abundance of phytoplankton in the ocean explain why these factors regulate the abundance

a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.

it is called the mitotic spindle