Add the protons and neutrons to find atomic mass 5+4=9. the atomic mass is 9
Population density just represents the average number of individuals per unit of area or volume. Often, individuals in a population are not spread out evenly. ... Population distribution describes how the individuals are distributed, or spread throughout their habitat
Answer:
A sucessão primária ocorre em ambientes estéreis, onde não havia vestígios de organismos vivos que a ocupassem antes. Esse ambiente pode ser um local vulcânico em que a lava derretida destruiu o meio ambiente ou foi causada por dunas. A comunidade inicial de organismos para habitar esses ambientes é conhecida como sucessores primários ou colonizadores primáriosrimários
Explanation:
Primary colonisers initiate primary succession as such they are important to the future of such environments. They are though breeds of organisms that make use of scarce resources to survive in harsh environments. Without their ability to survive, there will be little or no way other forms of succession can take place. Reasons, why they may not persist, maybe too much stress imposed on them by the environment and above all their inability to compete when other successors come on board.
Increasing to decreasing Or decreasing to increasing or not constant or constant
