By primary succesion. Which is when new substrate is deposited.
No; while a cell can use passive transport to bring in water, it must use energy to bring in larger particles. There also may not be enough of a difference in concentration of particles for diffusion to occur.
Answer is A all living things need to go through the photosynthesis cycle and need oxygen to sustain life
Chitin is a chemical component of the cell walls of a Protozoa.
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