Can a living thing be called simple organism with organs?

The term "simple organism with organs" is not precise and can refer to different types of living things. Some simple organisms, such as single-celled organisms like bacteria and protozoa, do not have organs. Organs are specialized structures that perform specific functions and are found in multicellular organisms.

Multicellular organisms can have organs and still be considered relatively simple. For example, some invertebrates like flatworms and jellyfish have organs but lack complex organ systems and specialized tissues found in more complex animals. These organisms are often referred to as simple organisms with organs.

Examples of simple organisms with organs include:

- Hydra: Hydra is a small freshwater polyp that has a simple body structure with a mouth, tentacles, and a gastrovascular cavity.

- Flatworms: Flatworms are bilaterally symmetrical animals with a simple digestive system, nervous system, and excretory system.

- Roundworms: Roundworms are cylindrical worms with a digestive system, nervous system, and reproductive system.

- Jellyfish: Jellyfish have a simple body plan with a bell-shaped body, tentacles, and a gastrovascular cavity.

These organisms are considered simple in comparison to more complex animals like insects, fish, birds, and mammals, which have more specialized organs and complex organ systems.