The organisms that occupy two different places within the same food chain are:
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Venus flytrap - This carnivorous plant can be a producer (as it performs photosynthesis) and also acts as a consumer when it traps and digests insects for nutrients.
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Remora - This fish can occupy different trophic levels. It can be considered a consumer when it feeds on scraps from the hosts (such as sharks), while also having a mutualistic relationship with its host that could classify it as a form of parasite when it feeds off the host’s leftovers.
The pitcher plant primarily functions as a consumer, trapping insects but is still fundamentally a producer. Thermophiles are microorganisms primarily associated with extreme environments and do not fit in the conventional food chain roles in the same way.
Therefore, the correct selections are the Venus flytrap and the remora.