Which sequence best represents the levels of organization in a paramecium, a single-celled organism?
a. cells —› tissues —› organs —› organ systems —› organism
b. organelles —› organ systems —› organism
c. cells —› organs —› organ systems —› organism
d. organelles —› organism

organelles —› organism

Explanation:

The paramecium is a single-celled organism with several complex organelles like nucleus, cilia, food vacuole, etc.

Each organelle is specialized for specific metabolic function. This enables paramecium to be able to function as a whole unit with the ability to carryout vital processes that sustain life.

Hence, the sequence that best represents the level of organization in paramecium is organelles —› organism

answer; i believe the correct answer to the above question is ( friction)

"d.) carbon dioxide and hydrogen sulfide"