Question
Mollusks have a coelom and a complete digestive system. Their excretory system consists of tube-shaped organs called nephridia
Answers
GPT-4o mini
Yes, that's correct! Mollusks are a diverse group of invertebrate animals that are part of the phylum Mollusca. They exhibit a variety of forms and habitats, but they share some common characteristics, including:
1. **Coelom**: Mollusks possess a true coelom, which is a body cavity that is fully lined with mesodermal tissue. However, it's worth noting that the coelom in mollusks is reduced compared to other animals.
2. **Complete Digestive System**: Mollusks have a complete digestive system, which consists of a mouth and an anus, allowing for a more efficient processing of food as it moves through the digestive tract.
3. **Excretory System**: Mollusks typically have a pair of nephridia, which are tube-like structures that function in the excretion of metabolic waste products. The nephridia filter waste from the coelomic fluid and excrete it out of the body, similar to how kidneys function in vertebrates.
The diversity of this phylum includes familiar groups like snails, clams, octopuses, and squids, each with unique adaptations and behaviors, but they all share the fundamental characteristics mentioned above.
1. **Coelom**: Mollusks possess a true coelom, which is a body cavity that is fully lined with mesodermal tissue. However, it's worth noting that the coelom in mollusks is reduced compared to other animals.
2. **Complete Digestive System**: Mollusks have a complete digestive system, which consists of a mouth and an anus, allowing for a more efficient processing of food as it moves through the digestive tract.
3. **Excretory System**: Mollusks typically have a pair of nephridia, which are tube-like structures that function in the excretion of metabolic waste products. The nephridia filter waste from the coelomic fluid and excrete it out of the body, similar to how kidneys function in vertebrates.
The diversity of this phylum includes familiar groups like snails, clams, octopuses, and squids, each with unique adaptations and behaviors, but they all share the fundamental characteristics mentioned above.