Animalscaretips
The organism used its lophophore as a filter device Many only have mouth and no anus.
- What is the structure of a lophophore?
- What are some examples of lophophorates?
- How do lophophorates reproduce?
- Do lophophorates have segmentation?
- Do all brachiopods have Lophophores?
- Are lophophorates a phylum?
- What ecological roles do lophophorates have?
- What are the characteristics of lophophorates?
- Are barnacles lophophorates?
- Why are brachiopods in their own phylum?
- Do all Lophotrochozoans have a lophophore?
- Are octopus Lophotrochozoans?
- Does Entoprocta have lophophore?
- Are Lophophorates Deuterostomes?
What is the structure of a lophophore?
horseshoe worm
…by means of a protrusible lophophore, a structure at the anterior end that bears a circle or paired spiral of as many as 1,500 ciliated tentacles. The cilia produce a water current, and the tentacles trap food particles beneath a flap (epistome) that covers the central mouth.
What are some examples of lophophorates?
The lophophorates include the moss animals (phylum Bryozoa), lamp shells (phylum Brachiopoda), and phoronid worms (phylum Phoronida).
How do lophophorates reproduce?
Basic structure is two-layered, tentacle bearing cup which, depending on its orientation is either a polyp (sessile) or medusa (floating). Medusae reproduce sexually, with the fertilized eggs developing into so-called planula larva which is free-swimming.
Do lophophorates have segmentation?
The Annelida are worms with thorough segmentation of the body. The phoronids, bryozoans, and brachiopods are all filter-feeders that share a ciliated feeding organ called a lophophore.
Do all brachiopods have Lophophores?
The lophophore /ˈlɒfəfɔːr/ is a characteristic feeding organ possessed by four major groups of animals: the Brachiopoda, Bryozoa, Hyolitha, and Phoronida, which collectively constitute the protostome group Lophophorata. All lophophores are found in aquatic organisms.
Are lophophorates a phylum?
Lophophorates comprise three phyla, brachiopods, bryozoans and phoronids, that share a lophophore (i.e. a set of tentacles surrounding the mouth, used for feeding).
What ecological roles do lophophorates have?
The lophophore performs several main functions including the collecting of food particles, the brooding of embryos, and respiration. Lophophores are also known in some other bilaterians–the phoronids and bryozoans.
What are the characteristics of lophophorates?
The Lophophorates--Characteristics 1. U-shaped circle of tentacles with mouth at center and anus at side 2. U-shaped digestive tract 3. Typically eucoelomate, with a deuterostomate-type of structure with respect to the origin of the coelom B.
Are barnacles lophophorates?
A genetic study concludes that lophophorates are not descended from a common ancestor, thus invalidating the clade Lophotrochozoa. I propose that lophophorates and barnacles are chimeras, with components from different phyla.
Why are brachiopods in their own phylum?
The animal. Brachiopods are marine animals belonging to their own phylum of the animal kingdom, Brachiopoda. ... Brachiopods are virtually defenceless and their shell, enclosing the animal's organs, is the only protection against predators.
Do all Lophotrochozoans have a lophophore?
As lophotrochozoans, the organisms in this superphylum possess either lophophore or trochophore larvae. The exact relationships between the different phyla are not entirely certain. ... The Trochozoa include the Nemertea, Mollusca, Sipuncula, and Annelida.
Are octopus Lophotrochozoans?
The Trochozoa contain many worm-like forms, including the segmented worms (Phylum Annelida) but it also includes the Mollusca (snails, squid, octopods, clams, etc).
Does Entoprocta have lophophore?
The lophophore is the characteristic feeding organ of four major groups of animals: the Brachiopoda, Bryozoa, Entoprocta, and Phoronida. All lophophores are found in aquatic organisms.
Are Lophophorates Deuterostomes?
Lophophorates are not just protostomes but advanced protostomes, and have no special relationship with deuterostomes.
