0
What else can I help you with?
What are the main characteristics of sponges cnidarians and worms?
Sponges are invertebrate animals that usually have no body symmetry and never have tissues or organs. Cnidarians use stinging cells to capture food and defend themselves. Flatworms are flat and as soft as jelly. Unlike cnidarians or flatworms, roundworms have a digestive system that is like a tube, open at both ends. Earthworms and other segmented worms have bodies made up of many linked sections called segments.
Why are sponges cnidarians flatworms and roundworms limited to life in water or moist environments?
Sponges, cnidarians, flatworms, and roundworms are limited to aquatic or moist environments primarily due to their physiological adaptations and reliance on water for key life processes. These organisms often lack specialized respiratory and circulatory systems, relying on diffusion for gas exchange and nutrient transport, which necessitates a moist environment to facilitate these processes. Additionally, many of these species have permeable bodies that can easily lose water, making survival in drier conditions challenging. Overall, their reproductive and developmental stages also often require aquatic habitats for successful completion.
Are coral jellyfish or sponges cnidarians?
Corals and Jellyfish are cnidarians, sponges are not.
What are the phyla's?
In no particular order: Chordates Echinodermata Platyhelminthes (Flatworms) Nematodes (Roundworms) Annelids (Segmented Worms) Arthropods Porifera (Sponges) Molluscs (Shells)
What phyla that include simple aquatic organism?
Some phyla that include simple aquatic organisms are Porifera (sponges), Cnidaria (corals, jellyfish), Nematoda (roundworms), and Platyhelminthes (flatworms). These organisms often have basic body structures and are adapted to aquatic environments.
What do flatworms have that sponges and cnidarians dont?
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
Are cnidarians arthropods?
Cnidarians and Sponges are invertebrates
Do sponges or cnidarians have a gastovascular cavity?
No, they are from the Phylum Porifera.
Are sponges cnidarians?
No. Sponges have their own phylum called Porifera.
What is the order of animal kingdom phyla simple to complex?
The order of animal kingdom phyla from simple to complex is generally considered to be Porifera (sponges), Cnidaria (jellyfish, corals), Platyhelminthes (flatworms), Nematoda (roundworms), Annelida (segmented worms), Mollusca (clams, snails), Arthropoda (insects, crustaceans), Echinodermata (starfish, sea urchins), and Chordata (vertebrates).
Are the three phyla of worms more closely related to complex animals or to sponges and cnidarians?
Ban'n chen, al fe research.
Which invertebrate animals have bodies shaped like a sack with openings at the top - sponges or cnidarians?
Cnidarians.
