What organisms do not have a digestive system?

Answer 1

Oh, dude, you're asking about those chill organisms that don't bother with all that digestive system stuff? Cool, let's keep it simple. Organisms like sponges and jellyfish are just like, "Who needs a digestive system anyway?" They just like, absorb nutrients through their bodies and call it a day. So yeah, they're the cool kids at the party skipping out on the whole digestion thing.

Answer 2

Well, isn't that an interesting question! There are some fascinating organisms out there, like sponges and jellyfish, that don't have a traditional digestive system like we do. Instead, they rely on other methods to obtain nutrients and energy, showing us the incredible diversity of life in our world. Just like in art, nature has many different ways of creating beauty and balance.

Answer 3

Organisms such as sponges, which belong to the phylum Porifera, do not have a digestive system. Instead, they rely on intracellular digestion, where food particles are engulfed by specialized cells called choanocytes and digested within the cells. This process allows them to obtain nutrients directly from the food particles without the need for a centralized digestive system.

Answer 4

are there choices?

the tracheal system of insects provides direct exchange between the air and body cell, therefore these insect like a grasshopper does not have respiratory system in its body.

Answer 5

All of the organisms have some sort of digestive system. Some of the unicellular organisms such as paramecium and amoeba, have vesicles that take in food, and then many invertebrates have something such as filter eating similar to that of a sponge. All organisms even bacteria and viruses have some way of surviving, and all living things need to have some sort of food in order to survive.

Answer 6

I know very small organisms like bacteria and very small insects don't. Some sea creatures like jellyfish and sponges don't have brains either.

Answer 7

Two organisms that do not have circulatory systems include sea anemones and jellyfish.