The photoreceptors would be your eyes, chemoreceptors skin, olfactory for nose and mechanoreceptors for obviously tongue hope this helps.
Answer:
I think option (C) is right answer
I think the correct answer from the choices listed above is the third option. The term that describes all of the non-living components of an ecosystem would be abiotic. Abiotic<span> components or </span>abiotic<span> factors are non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems.</span>
The carbon is among the most abundant element found in the living organisms. The carbon enters the food web through the producers via the process by which they make their food, which is known as photosynthesis. The plants during the process of photosynthesis, take in carbondioxide, water and capture the sunlight to make ATP. The carbon from all these elements enters the producers and then is passed on from one trophic level to another.
Hence, the blanks can be filled with 'producers, and photosynthesis'.