In constrast to annelids the Platyhelminthes show

In constrast to annelids the Platyhelminthes show
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In constrast to annelids the Platyhelminthes show A. Absence of body cavity B. Presence of pseudocoel C. Radial symmetry D. Bilaterla Symmetry
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In contrast to annelids the platyhelminthes show (a) absence of body cavity (b) bilateral symmetry (c) radial symmetry (d) presence of pseudocoel.

Description : In contrast to annelids the platyhelminthes show (a) absence of body cavity (b) bilateral symmetry (c) radial symmetry (d) presence of pseudocoel.

Last Answer : (a) absence of body cavity

How is the nervous system characterized in beings of the phylum Annelida? How can one compare cephalization in annelids to cephalization in nematodes and platyhelminthes?

Description : How is the nervous system characterized in beings of the phylum Annelida? How can one compare cephalization in annelids to cephalization in nematodes and platyhelminthes?

Last Answer : Annelids have a nervous system made of two ventral chords and one relatively big nervous cell concentration in its anterior portion resembling a primitive brain. Nematodes have an anterior neural ... is more outstanding than in nematodes or in flatworms. Image Diversity: earthworm nervous system

Solenocytes are the main excretory structures in (a) echinodermates (b) platyhelminthes (c) annelids (d) molluscs.

Description : Solenocytes are the main excretory structures in (a) echinodermates (b) platyhelminthes (c) annelids (d) molluscs.

Last Answer : (b) platyhelminthes

Which of the following animals are true coelomates with bilateral symmetry? (a) Adult Echinoderms (b) Aschelminthes (c) Platyhelminthes (d) Annelids

Description : Which of the following animals are true coelomates with bilateral symmetry? (a) Adult Echinoderms (b) Aschelminthes (c) Platyhelminthes (d) Annelids

Last Answer : (d) Annelids

Example for aquatic annelids. -Biology

Description : Example for aquatic annelids. -Biology

Last Answer : answer:

What type of circulation is found in annelids? -Biology

Description : What type of circulation is found in annelids? -Biology

Last Answer : answer:

Assertion : Annelids, arthropods, and molluscs are protostomial coelomates . Reason : All the three phyla include members with bilateral symmetry and

Description : Assertion : Annelids, arthropods, and molluscs are protostomial coelomates . Reason : All the three phyla include members with bilateral symmetry and

Last Answer : Assertion : Annelids, arthropods, and molluscs are protostomial coelomates . Reason : All the three ... . If both Assertion and Reason are false.

Annelids possess

Description : Annelids possess

Last Answer : Annelids possess A. Cell aggreate plan B. Blind sac plan C. Tube within a tube plan D. Hollow sac plan

$ The first formed embryonic cavity is called blastocoel. ! Annelids have a segmented body.

Description : $ The first formed embryonic cavity is called blastocoel. ! Annelids have a segmented body.

Last Answer : $ The first formed embryonic cavity is called blastocoel. ! Annelids have a segmented body. A. If both As ... is wrong D. If both As and R are wrong.

Do annelids have a back bone?

Description : Do annelids have a back bone?

Last Answer : no

Do annelids have a back bone?

Description : Do annelids have a back bone?

Last Answer : no

A closed circulatory system is one in which blood circulates only inside blood vessels. For this reason the blood pressure is higher in animals with closed circulatory system. The cellularity of the blood is also higher with many specific blood cells. The closed circulatory system is a feature of annelids, cephalopod molluscs and vertebrates. The Circulatory System - Image Diversity: closed circulatory system

Description : A closed circulatory system is one in which blood circulates only inside blood vessels. For this reason the blood pressure is higher in animals with closed circulatory system. The ... annelids, cephalopod molluscs and vertebrates. The Circulatory System - Image Diversity: closed circulatory system

Last Answer : What are the advantages of the closed circulatory system over the open circulatory system?

Which type of circulatory system do molluscs have? How can it be compared to the respiratory system of annelids?

Description : Which type of circulatory system do molluscs have? How can it be compared to the respiratory system of annelids?

Last Answer : Molluscs, with the exception of cephalopods, have an open circulatory system, i.e., the blood circulates within vessels, from the heart, but it also fills open lacunas or cavities. In ... .e., the blood circulates only inside blood vessels. Mollusca - Image Diversity: mollusc circulatory system

Are mollusc metameric beings? Exclusively analyzing this feature could it be said that molluscs are evolutionarily proximal to nematodes or to annelids?

Description : Are mollusc metameric beings? Exclusively analyzing this feature could it be said that molluscs are evolutionarily proximal to nematodes or to annelids?

Last Answer : In molluscs there is not a body divided into segments. Considering just this feature it could be said that evolutionarily they are more proximal to nematodes than to annelids.

How can the excretory system of annelids be described?

Description : How can the excretory system of annelids be described?

Last Answer : In each segment (metamere) of the being a pair of complete excretory structures called metanephridium exists. The metanephridium has an extremity, the nephrostoma, which collects residuals from the ... , the nephridiopore, which opens in the body surface. Image Diversity: earthworm excretory system

What is the type of circulatory system present in annelids?

Description : What is the type of circulatory system present in annelids?

Last Answer : In beings of the phylum Annelida the circulatory system is closed, i.e., blood circulation takes place only within specialized vessels.

What is the main evolutionary novelty presented by annelids?

Description : What is the main evolutionary novelty presented by annelids?

Last Answer : The main evolutionary novelty presented by the beings of the phylum Annelida is the coelom, the internal body cavity totally covered by mesoderm, a feature also present in arthropods, ... important evolutionary novelty of the annelids is the closed circulatory system. Image Diversity: coelom

What are some examples of annelids?

Description : What are some examples of annelids?

Last Answer : Earthworms, leeches and lugworms. Image Diversity: earthworms leeches lugworms

What are the morphological similarities and differences between nematodes and annelids?

Description : What are the morphological similarities and differences between nematodes and annelids?

Last Answer : Nematodes, like annelids, have a cylindrical elongated body. Annelids differentiate from nematodes by presenting a segmented body (body divided into metameres) and so they are called segmented worms.

Uricotelic mode of excreting nitrogenous wastes is found in (a) reptiles and birds (b) birds and annelids (c) amphibians and reptiles (d) insects and amphibians.

Description : Uricotelic mode of excreting nitrogenous wastes is found in (a) reptiles and birds (b) birds and annelids (c) amphibians and reptiles (d) insects and amphibians.

Last Answer : (a) reptiles and birds

.Malpighian tubules are (a) excretory organs of insects (b) excretory organs of annelids (c) respiratory organs of insects (d) respiratory organs of annelids.

Description : .Malpighian tubules are (a) excretory organs of insects (b) excretory organs of annelids (c) respiratory organs of insects (d) respiratory organs of annelids.

Last Answer : (a) excretory organs of insects

The connecting link between annelids and arthropods is a) Nereis b) Belostoma c) Peripatus d) Balanus

Description : The connecting link between annelids and arthropods is a) Nereis b) Belostoma c) Peripatus d) Balanus

Last Answer : c) Peripatus

One-celled algae enclosed in minute two-part silic shells are called: a) dinoflagellates (pron: die-no-flaj-el-ates) b) coelenterates (pron: sell-en-ter-ates) c) annelids d) diatoms

Description : One-celled algae enclosed in minute two-part silic shells are called: a) dinoflagellates (pron: die-no-flaj-el-ates) b) coelenterates (pron: sell-en-ter-ates) c) annelids d) diatoms

Last Answer : ANSWER: D -- DIATOMS 

Which is the animal of Platyhelminthes episode ?

Description : Which is the animal of Platyhelminthes episode ?

Last Answer : The tapeworm is an animal of the Platyhelminthes episode.

In platyhelminthes, the excretory organs are

Description : In platyhelminthes, the excretory organs are

Last Answer : In platyhelminthes, the excretory organs are A. Nephridia B. Nephrons C. Flame cells D. Archeocytes

Comment on the reproduction of the members of the phylum Platyhelminthes.

Description : Comment on the reproduction of the members of the phylum Platyhelminthes.

Last Answer : Comment on the reproduction of the members of the phylum Platyhelminthes.

Mention the unique features of phylum Platyhelminthes.

Description : Mention the unique features of phylum Platyhelminthes.

Last Answer : Mention the unique features of phylum Platyhelminthes.

Is a jellyfish a platyhelminthes?

Description : Is a jellyfish a platyhelminthes?

Last Answer : Need answer

Are Platyhelminthes acoelomates, pseudocoelomates or coelomates?

Description : Are Platyhelminthes acoelomates, pseudocoelomates or coelomates?

Last Answer : Acoelomates

Not all animals have a circulatory system. Poriferans, cnidarians, platyhelminthes and nematodes (in these there are the pseudocoelom fluid but no vessels) are avascular animals. Echinoderms do not have true circulatory systems either.

Description : Not all animals have a circulatory system. Poriferans, cnidarians, platyhelminthes and nematodes (in these there are the pseudocoelom fluid but no vessels) are avascular animals. Echinoderms do not have true circulatory systems either.

Last Answer : What is the alternative means for transport of substances in animals without a circulatory system? Why is blood important for larger animals?

Which are the morphological features that differentiate the beings of the phylum Annelida from nematodes and platyhelminthes?

Description : Which are the morphological features that differentiate the beings of the phylum Annelida from nematodes and platyhelminthes?

Last Answer : Platyhelminthes are worms with flat bodies (flatworms), nematodes are worms with cylindrical but not segmented bodies (roundworms). Annelids are cylindrical worms with segmented bodies (they are metameric).

Compared to platyhelminthes which physiological problem have the cylindrical body of nematodes brought? How was that problem solved?

Description : Compared to platyhelminthes which physiological problem have the cylindrical body of nematodes brought? How was that problem solved?

Last Answer : The cylindrical shape of nematodes made impossible the respiration exclusively by simple diffusion among cells since there are tissues far from the exterior. This problem was solved by the ... respiration is cutaneous; it is considered that these animals still make respiration by diffusion).

What is the typical morphological feature of nematodes that differentiates them from platyhelminthes?

Description : What is the typical morphological feature of nematodes that differentiates them from platyhelminthes?

Last Answer : Nematodes are also known as roundworms. As the name indicates they are not flat like platyhelminthes. In evolutionary grounds with the nematodes the first complete digestive system appears, with mouth and anus, and the pseudocoelom is also a novelty.

Platyhelminth identity card. How are platyhelminthes characterized according to examples of representing beings, basic morphology, type of symmetry, germ layers and coelom, digestive system, respiratory system, circulatory system, excretory system, nervous system and types of reproduction?

Description : Platyhelminth identity card. How are platyhelminthes characterized according to examples of representing beings, basic morphology, type of symmetry, germ layers and coelom, digestive system, respiratory system, circulatory system, excretory system, nervous system and types of reproduction?

Last Answer : Examples of representing beings: planarias, schistosomes, taenias. Basic morphology: flat worm. Type of symmetry: bilateral. Germ layers and coelom: triploblastics, acoelomates. Digestive system: ... , beginning of cephalization. Types of reproduction: asexual and sexual. Phylum Nematoda Review

What are the main human diseases caused by platyhelminthes?

Description : What are the main human diseases caused by platyhelminthes?

Last Answer : The main human diseases caused by platyhelminthes are schistosomiasis, tapeworm disease (cestodiasis) and cysticercosis. (Note:Diseases are studied in the “Diseases” division of this site.)

Into which classes are platyhelminthes divided? How are these classes characterized and what are some representative beings of each of them?

Description : Into which classes are platyhelminthes divided? How are these classes characterized and what are some representative beings of each of them?

Last Answer : Platyhelminthes are divided into three classes: turbellarians (or Turbellaria), trematodes (or Trematoda) and cestodes (or Cestoda). Turbellarians are free-living platyhelminthes and their ... saginata and Taenia solium) that parasite humans. Image Diversity: turbellarians trematodes cestodes

What is the type of reproduction, sexual or asexual, that occurs in platyhelminthes?

Description : What is the type of reproduction, sexual or asexual, that occurs in platyhelminthes?

Last Answer : Platyhelminthes may present sexual or asexual reproduction.

Is the nervous system in platyhelminthes more or less sophisticated than in cnidarians? What are the main neural structures found in flatworms? How is this neural organization important for the diversity of biological niches explored by species of the phylum?

Description : Is the nervous system in platyhelminthes more or less sophisticated than in cnidarians? What are the main neural structures found in flatworms? How is this neural organization important for the diversity of biological niches explored by species of the phylum?

Last Answer : Platyhelminthes present a more sophisticated nervous system than cnidarians, as the first neural chords with ganglia (grouping of neurons) appear, a characteristic of the evolutionary process of ... that are parasites and those that are free-living. Image Diversity: platyhelminth nervous system

Poriferans and cnidarians do not have excretory systems. Do platyhelminthes have an excretory system?

Description : Poriferans and cnidarians do not have excretory systems. Do platyhelminthes have an excretory system?

Last Answer : Platyhelminthes have a primitive excretory system made of flame cells (also called solenocytes), excretory ducts and excretory pores. Image Diversity: platyhelminth excretory system

What are the types of digestion and of digestive system of platyhelminthes?

Description : What are the types of digestion and of digestive system of platyhelminthes?

Last Answer : Flatworms have incomplete digestive systems and they present extracellular and intracellular complementary digestions. Image Diversity: platyhelminth digestive system

How many germ layers originate the body of platyhelminthes? In relation to this characteristic how are these animals classified?

Description : How many germ layers originate the body of platyhelminthes? In relation to this characteristic how are these animals classified?

Last Answer : Platyhelminthes are the first triploblastic animals (remember that cnidarians are diploblastic), i.e., they present three germ layers: ectoderm, mesoderm and endoderm.

What is the main external morphological feature that differentiates platyhelminthes from other worms (nematodes)?

Description : What is the main external morphological feature that differentiates platyhelminthes from other worms (nematodes)?

Last Answer : Platyhelminthes are also known as flatworms because they are worms with a flat body. This is the main external morphological feature that differentiates them from nematodes (roundworms).

Crabs belongs to the phylum – (1) Mollusca (2) Cnidaria (3) Arthropoda (4) Platyhelminthes

Description : Crabs belongs to the phylum – (1) Mollusca (2) Cnidaria (3) Arthropoda (4) Platyhelminthes

Last Answer : (3) Arthropoda Explanation: Crabs come from the same family as lobsters, crayfish, shrimp, krill and barnacles, as all are in the subphylum crustacea. They are also in the phylum Arthropoda.

'Crabs' belongs to the phylum of – (1) Mollusca (2) Cnidaria (3) Arthropoda (4) Platyhelminthes

Description : 'Crabs' belongs to the phylum of – (1) Mollusca (2) Cnidaria (3) Arthropoda (4) Platyhelminthes

Last Answer : (3) Arthropoda Explanation: Crabs come from the same family as lobsters, crayfish, shrimp, krill and barnacles, as all are in the subphylum crustacea. They are also in the phylum Arthropoda.

Write down the characteristics of phylum Platyhelminthes.

Description : Write down the characteristics of phylum Platyhelminthes. 

Last Answer : i) They are also called flat worms because their body is flattened. ii) These are triploblastic animals. So their body is divided into three layers. Ectoderm, Mesoderm and Endoderm. iii) ... of other animals. iv) Their common examples are Liver Fluke, Tapeworm and Planaria etc. 

Helminthology is the study of Phylum C A. Platyhelminthes B. Nemathelminths C. Both D. None

Description : Helminthology is the study of Phylum C A. Platyhelminthes B. Nemathelminths C. Both D. None

Last Answer : Both

Members of Phylum Platyhelminthes are A A. Dorsoventrally flattened B. Laterally Compressed C. Round D. None

Description : Members of Phylum Platyhelminthes are A A. Dorsoventrally flattened B. Laterally Compressed C. Round D. None

Last Answer : Dorsoventrally flattened

Phylum Platyhelminthes includes B A. Round worms B. Flatworms C. Thorny headed worms D. All of above

Description : Phylum Platyhelminthes includes B A. Round worms B. Flatworms C. Thorny headed worms D. All of above

Last Answer : Flatworms

Peripatus is a connecting link between (a) mollusca and echinodermata (b) annelida and arthropoda (c) coelenterata and porifera (d) ctenophora and platyhelminthes

Description : Peripatus is a connecting link between (a) mollusca and echinodermata (b) annelida and arthropoda (c) coelenterata and porifera (d) ctenophora and platyhelminthes

Last Answer : (b) annelida and arthropoda

.Which of the following is an example of platyhelminthes? (a) Plasmodium (b) Schistosoma (c) Trypanosoma (d) Wuchereria

Description : .Which of the following is an example of platyhelminthes? (a) Plasmodium (b) Schistosoma (c) Trypanosoma (d) Wuchereria

Last Answer : (b) Schistosoma