The answer is C-- because it came from something living.
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An observation may generate a scientific question, which may lead to a hypothesis. The hypothesis can be tested the experimentation. The results of experimentation lead to changes in scientific knowledge.
<span>B) The two types of tetramers associate to form an octamer. </span>
The answer for the above question is the Euglenid. These are a protist characterized by one or more whiplike flagella that are used for locomotion and by a photoreceptor that detects light. These are photosynthetic, however if they are deprived of chlorophyll, some are capable of heterotrophic mode of nutrition where the ingest already made food.
