The organ level of organization is much less definite in?

Explanation

The correct answer is plants. While plants do have organs such as roots, stems, and leaves, their organ systems are not as distinct or specialized as those in animals. This makes the organ level of organization less definite in plants compared to animals.Animals have highly specialized and distinct organ systems, making their organ level of organization more definite. Bacteria are unicellular organisms and do not possess organs; thus, they do not have an organ level of organization at all. Similarly, viruses are not considered living organisms and lack cellular structures, including organs.