They have muscular and excretory systems. The muscular system allows them to move from place to place over solid surfaces. The excretory system lets them maintain a proper balance of water and salts.
The two highest level taxa in the Linnaean system are the kingdom and phylum, except in plants, which have divisions instead of phyla.
No, the highest level is kingdom.
Worms are multicellular organisms belonging to the animal kingdom, while sponges are multicellular organisms belonging to the animal phylum Porifera. Worms have bilateral symmetry and a digestive system, while sponges lack symmetry and have a porous body structure supported by spicules or spongin fibers.
The arthropods are by far the most successful phylum of animals, both in diversity of distribution and in numbers of species and individuals. They have adapted successfully to life in water, on land and in the air.
· Kingdom· Phylum· Class· Order· Family· Genes· Species
Flatowrms have muscle cells, they are a triploblastic phylum. They have endo, meso and ectoderm layersSponges are Parazoa and lack any true tissue at allCnidaria are diploblastic, having only endoderm and ectoderm
The first animal phylum to have a circulatory system was the Annelida phylum, specifically the earthworm. Annelids have a closed circulatory system composed of blood vessels that transport nutrients and oxygen throughout the body.
Some characteristics that make Nematoda more advanced include their presence of a pseudocoelom, a complete digestive system with a separate mouth and anus, and a more developed reproductive system with separate sexes. They also display a greater diversity in habitat and feeding strategies compared to previous animal phyla.
A common feature of phylum Platyhelminthes is their flattened, ribbon-like body shape, which gives them their name (platy meaning flat). They also lack a body cavity (coelom) and have a simple nervous system with nerve cords and ganglia.
bilateral system
organ system
Yes, flatworms have a tissue-organ grade of organization. They have distinct tissues that perform specific functions, such as muscle tissue for movement and nerve tissue for coordination. They also have simple organ systems, such as a digestive system with a mouth and intestine.
The slug is technically an animal so is the worm so it would be the worm and the slug family.
The animal classification system has seven levels, which are kingdom, phylum, class, order, family, genus, and species. These levels help to categorize and organize the diverse range of animal species on Earth based on their characteristics and evolutionary relationships.
a digestive system with a single opening
To identify an animal's phylum, you typically classify it based on its overall body plan, symmetry, and other key physical characteristics. This can involve observing features such as the presence of a backbone, body covering, or digestive system organization. Consulting classification guides or utilizing resources like dichotomous keys can help in determining the phylum to which an animal belongs.
Actually the correct spelling is: nephridiopore - it is part of the excretory system of flatworms