Mutalism because they both benefit each other
Stars are formed in clouds of dust and gas (nebulae.) Nuclear reactions at the center (core) of stars gives enough energy to make them shine brightly for many, many years. The exact l<span>ifetime of a star depends on its size.</span>
C. Organ System
Like said in the definition above, an organ system is a group of organs working together to perform a specific function for the organism.
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I think the population of deer will increase
