I am pretty sure your answer would be D.decomposer :)
Answer: different organisms have different chromosome numbers
Explanation: eukaryote cells have more than one chromosome
chromosomes are present in most cells all the time (not in erythrocytes), but cannot be visualised except during telophase of mitosis or meisosis
bacterial cells don’t have a nucleus
Hierarchy - I don’t think I have the full context of the question but the word fits the best of its biology related
Answer: Plants
Explanation: Less solar radiation would mean less sunlight for photosynthesis which means that they won't get enough energy for survival and might die out.
Facilitated diffusion does not use cellular energy.
Since the transportation of molecules occurs through the concentration gradient, it doesn’t use cellular energy for transportation of molecules.