Answer:
A scientific hypothesis that is subsequently extensively tested and continues to appear valid may be called a <u>THEORY.</u>
Because pioneer species are the first to return after a disturbance, they are the first stage of succession, and their presence increases the diversity in a region. They are usually a hardy plant, algae or moss that can withstand a hostile environment.
The answer to this question would be: <span>(2) cytoplasm
The nucleus is the organelle in middle of the cell that contains DNA. The ribosome is organelle that has a function in protein synthesize. Mitochondrial has a function in making the energy. Cytoplasm is water inside the cells. Everything would be stored inside it and moving material will need to pass it.</span>
B. community
hope this helps;)