1. Excretory system of these molluscs is of open type except, 

1. Excretory system of these molluscs is of open type except, 
by

1 Answer

Answer :

Multiple-choice Questions 1. Excretory system of these molluscs is of open type except, (a) Sea hare ... (c) Macropus (d) Duck billed platypus
by
selected by

Related questions

Open circulatory system is the one in which blood does not circulate only inside blood vessels but it also falls in cavities that irrigate tissues. In the open circulatory system the blood pressure is low and generally the blood (called hemolymph) has low cellularity. Arthropods, molluscs (the cephalopods are exception) and protochordates have open circulatory system. The Circulatory System - Image Diversity: open circulatory system

Description : Open circulatory system is the one in which blood does not circulate only inside blood vessels but it also falls in cavities that irrigate tissues. In the open circulatory system ... and protochordates have open circulatory system. The Circulatory System - Image Diversity: open circulatory system

Last Answer : What is a closed circulatory system?

Mollusc identity card. How are molluscs 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 : Mollusc identity card. How are molluscs 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: snails, sea slugs, octopuses, squids, mussels, oysters. Basic morphology: soft body, with or without calcareous shell. Type of symmetry: bilateral. ... system: ganglial, advanced cephalization in cephalopods. Types of reproduction: sexual. Phylum Echinodermata Review

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

What is the type of digestive system in molluscs?

Description : What is the type of digestive system in molluscs?

Last Answer : Molluscs present extracellular digestion and a complete digestive system, with mouth and anus.

What type of exoskeleton do some molluscs present?

Description : What type of exoskeleton do some molluscs present?

Last Answer : Some molluscs, like bivalves and gastropods, secrete an external calcareous carapace (the shell). Calcium carbonate is secreted by the mantle, a fold in the epidermis, forming the shell. In pelecypods ... contains only part of the body, the visceral mass. Mollusca - Image Diversity: mollusc shell

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?

How is the nervous system of molluscs organized?

Description : How is the nervous system of molluscs organized?

Last Answer : Molluscs have well-developed sensory structures. It is accepted that cephalopods, like octopus and squid, have eyes with image formation. Snails have antennae and a pair of well-defined ... molluscs and neurons concentrate in a ganglial pattern. Mollusca - Image Diversity: mollusc nervous system

How is the excretory system of molluscs characterized?

Description : How is the excretory system of molluscs characterized?

Last Answer : Molluscs have one or two pair of spongelike nephridia, similar to kidneys.

How is the respiratory system in aquatic molluscs characterized? What adaptive respiratory structure do terrestrial molluscs present?

Description : How is the respiratory system in aquatic molluscs characterized? What adaptive respiratory structure do terrestrial molluscs present?

Last Answer : Aquatic molluscs oxygenate their blood through gills in direct contact with water. In terrestrial molluscs the rich vascularity under the mantle cavity absorbs air doing the role of a primitive lung. Mollusca - Image Diversity: mollusc respiratory system

Which branch of science in which we study about molluscs? -Do You Know?

Description : Which branch of science in which we study about molluscs? -Do You Know?

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.

Which one of the following molluscs was formerly used as currency ( money ) ?

Description : Which one of the following molluscs was formerly used as currency ( money ) ?

Last Answer : Which one of the following molluscs was formerly used as currency ( money ) ? A. Dentalium B. Chiton C. Oyster D. Loligo

A fold of dorsal body wall which covers the visceral mass in molluscs is called as

Description : A fold of dorsal body wall which covers the visceral mass in molluscs is called as

Last Answer : A fold of dorsal body wall which covers the visceral mass in molluscs is called as A. Operculum B. Mantle C. Shell D. None of these

How many animals in the given list have gills for respiration ? Earthworm , Frog, Fish, Insects, Reptiles, Aquatic arthropods, Flatworm, Molluscs, Bir

Description : How many animals in the given list have gills for respiration ? Earthworm , Frog, Fish, Insects, Reptiles, Aquatic arthropods, Flatworm, Molluscs, Bir

Last Answer : How many animals in the given list have gills for respiration ? Earthworm , Frog, Fish, Insects, Reptiles, ... A. Six B. Four C. Three D. Five

Copper containing respiratory pigment in blood of molluscs.

Description : Copper containing respiratory pigment in blood of molluscs.

Last Answer : Give one word for the following: Copper containing respiratory pigment in blood of molluscs.

Give the economic importance of molluscs.

Description : Give the economic importance of molluscs.

Last Answer : Give the economic importance of molluscs.

How can the endoskeleton of echinoderms be characterized in comparison to analogous structures present in vertebrates, arthropods and molluscs?

Description : How can the endoskeleton of echinoderms be characterized in comparison to analogous structures present in vertebrates, arthropods and molluscs?

Last Answer : The echinoderm skeleton is internal, i.e., it is an endoskeleton. It is made of calcium carbonate (calcareous). Vertebrates also have internal skeleton made of bones and cartilages. Arthropods ... of chitin, a chitinous exoskeleton. Some molluscs present a calcareous shell that works as exoskeleton.

What are examples of the ecological and economic importance of molluscs?

Description : What are examples of the ecological and economic importance of molluscs?

Last Answer : Molluscs are important players in several food chains in ecosystems. Many marine molluscs are part of a common human diet, like octopus and squid, very appreciated in the East, and oysters and ... molluscs that are part of the food industry, pearls made by oysters have high commercial value.

What is the function of the feet in molluscs? How is the mollusc foot related to the name given to the classes of the phylum?

Description : What is the function of the feet in molluscs? How is the mollusc foot related to the name given to the classes of the phylum?

Last Answer : The mollusc foot has the function of locomotion, support, fixation, digging in the environment and sometimes of holding prey. The terminations of the names given to the main mollusc classes come from the Greek ... -shaped feet (ax in Greek is pelekys ); in cephalopods the feet are near the head.

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.

What are the biological troubles that molluscs face due to their soft body?

Description : What are the biological troubles that molluscs face due to their soft body?

Last Answer : Because molluscs have a soft body they are more fragile. They also have more difficulty to support their bodies in terrestrial environments or to fixate to substrates in aquatic habitats. Many ... calcareous carapace, or shell, an exoskeleton to support and protect them and to prevent dehydration.

What is the morphological feature of molluscs after which the phylum is named?

Description : What is the morphological feature of molluscs after which the phylum is named?

Last Answer : The word “mollusc” means “soft thing”. Molluscs have soft bodies and this feature explains the name of the phylum. Mollusca - Image Diversity: mollusc structure

In which habitats do molluscs live?

Description : In which habitats do molluscs live?

Last Answer : Molluscs can be found in the sea, freshwater and in terrestrial environments.

Given below is the representation of the extent of global diversity of invertebrates. What groups the four portions (A-D) represent respectively? A B C D A B C D (a) Insects Crusta- Other Molluscs ceans animal groups (b) Crustaceans Insects Molluscs Other animal groups (c) Molluscs Other Crusta- Insects animal ceans groups (d) Insects Molluscs Crusta- Other animal ceans groups

Description : Given below is the representation of the extent of global diversity of invertebrates. What groups the four portions (A-D) represent respectively? A B C D A B C D (a) Insects Crusta- ... Molluscs Other Crusta- Insects animal ceans groups (d) Insects Molluscs Crusta- Other animal ceans groups

Last Answer : (d) Insects Molluscs Crusta- Other animal ceans groups

Two examples in which the nitrogenous wastes are excreted from body in the form of uric acid are (a) birds and lizards (b) frogs and cartilaginous fish (c) insects and bony fish (d) mammals and molluscs.

Description : Two examples in which the nitrogenous wastes are excreted from body in the form of uric acid are (a) birds and lizards (b) frogs and cartilaginous fish (c) insects and bony fish (d) mammals and molluscs.

Last Answer : (a) birds and lizards

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 one of the following statements about certain given animals is correct? (a) Roundworms (Aschelminthes) are pseudo- coelomates. (b) Molluscs are acoelomates. (c) Insects are pseudocoelomates. (d) Flatworms (Platyhelminthes) are

Description : Which one of the following statements about certain given animals is correct? (a) Roundworms (Aschelminthes) are pseudo- coelomates. (b) Molluscs are acoelomates. (c) Insects are pseudocoelomates. (d) Flatworms (Platyhelminthes) are

Last Answer : (a) Roundworms (Aschelminthes) are pseudo- coelomates.

Octopus and squid belong to the class of molluscs known as: a) cephalopoda (pron: sef-eh-lah-pod-ah) b) bivalvia c) gastropoda (pron: gas-tro-pod-ah) d) polyplacophora (pron: poly-pla-so-for-ah)

Description : Octopus and squid belong to the class of molluscs known as: a) cephalopoda (pron: sef-eh-lah-pod-ah) b) bivalvia c) gastropoda (pron: gas-tro-pod-ah) d) polyplacophora (pron: poly-pla-so-for-ah) 

Last Answer : ANSWER: A -- CEPHALOPODA

Types of system except one  a. closed  b. open  c. isolated  d. solid

Description : Types of system except one  a. closed  b. open  c. isolated  d. solid

Last Answer : solid