which other invertebrate groups are likely to be the closest relatives of mollusks? provide evidences.

Q: What advantages favored the evolution of tapeworms’ long, flat shape?

A: Tapeworm belongs to the Phylum Platyhelminthes commonly known as flatworms. The organisms belonging…

Q: Which of the following combinations of phylum anddescription is incorrect?(A)…

A: All animals are classified under the kingdom Animalia. They are multicellular, heterotrophic and…

Q: What are the four largest classes of mollusks, and where do they live?

A: Step 1 Mollusca is a phylum of soft-bodied and shelled animals that possess an unsegmented coelomate…

Q: Give the different classes of each phylum. 1. Phylum Cnidaria 2. Phylum Mollusca 3. Phylum…

A: Cnidaria  Radial symmetry, tissue level of organisation, acoelomate animals. Classification: On the…

Q: Which Animals Are Chordates?

A: Animals are multicellular eukaryotic organisms belonging to kingdom Animalia that are heterotrophic,…

Q: How are insects distinguished from other hexapods?

A: Arthropods are the invertebrates that form one of the largest groups of phylum in the animal…

Q: What evidence places roundworms in a clade with arthropods?

A: ROUNDWORMS It can be seen in an all-natural environment. It can be watched in the naked eye. Almost…

Q: Explain the term used for Mollusc with a broad, flat foot for crawling ?

A: Molluscs are considered the second species-rich phylum in the world followed by the arthropods. This…

Q: What levels of organization do chordates have that sponges do not?

A: The level of organization from simplest to the complex are Cell, tissue, organ, organ system.

Q: compare cnidarians to sponges and to the clade containing flatworms, mollusks, and annelids. What…

A: RH Whittaker gave the five-kingdom classification of living organisms. He used several factors to…

Q: Does the lack of a digestive system in tapeworms indicate that it is a primitive, ancestral form of…

A: Introduction: Platyhelminthes are organisms having a single opening to the digestive cavity. They…

Q: How can brachiopods be distinguished from bivalves?

A: Invertebrates are organisms in which backbone is absent . It includes :-  A ) Arthropods  B )…

Q: If snakes are limbless, how can they be consideredtetrapods?

A: The organisms of the ecosystem have significant properties. Depending upon the different features of…

Q: Explain why echinoderms are more closely related tochordates than invertebrates.

A: Phylum Echinodermata include marine bottom-dwellers such as sea stars, sea lilies, sea urchins,…

Q: Why are robber crabs land invertebrates?

A: Robber crab which is also known as coconut crab, scientific name Birgus latro , it is a species of…

Q: How can you compare the structures of the five different kinds of flatworms?

A: Flatworms:- They are soft-bodied invertebrates usually much flattened acoelomate worms. Example:-…

Q: . What features do all mollusks share?

A: Mollusk also spelled mollusc, is the second-largest phylum of soft-bodied invertebrate animals, with…

Q: Please define and explain: Coelomates Acoelomates Pseudocoelomates

A: Coelom is an empty space exhibited just in between wall of Alimentary canal and wall of body .…

Q: What sponge body type appears most efficient and makes possible the largest body size?

A: Sponges are the members of the phylum Porifera. Sponges are a multicellular organism that has bodies…

Q: which phylum of animals includes the parasitic tapeworm?

A: A phylum is a taxonomic group. It is a level higher than classes in taxonomic categories. This…

Q: jawless fish What is the function of the notochord?

A: Ostracoderms are extinct fishes of Paleozoic. The first evolutionary character that appeared in…

Q: Explain the features that account for the great success ofarthropods.

A: Arthropods are invertebrate animals with jointed leg. They are one of the largest species of animals…

Q: Do sponges appear to have any organs or organ systems?

A: Answer- Sponges are the most primitive type of animal in the whole kingdom.

Q: How does the lifestyle of a gastropod differ from that of a cephalopod?Identify adaptations that…

A: To describe: The way in which the lifestyle of a gastropod differs from that of a cephalopod.…

Q: List the traits found in the coelomate mollusks.

A: Mollusks are bilaterally symmetrical, segmented, soft-bodied, coelomate animals. The mollusks have a…

Q: Unifying features include shell, mantle, radula, foot, visceral mass Which classes show a loss of…

A: Mollusca is the  second largest phylum of the invertebrate animals.  Answer;1    The mollusk (or…

Q: illustrates four key characters ofchordates: a notochord; a dorsal, hollow nerve cord; pharyngeal…

A: A chordate is an animal of the phylum Chordata. During some period of their life cycle, chordates…

Q: Briefly describe asconoid, syconoid, and leuconoid body types in sponges

A: Sponges are multicellular organisms that belong to the phylum Porifera of the Kingdom Protista. They…

Q: What character does the term rhizarian indicate about the forams and actinopods?

A: Rhizaria are an ill-defined, species-rich supergroup consists mostly of unicellular eukaryotes.…

Q: How are the echinoderms significant to the marine environment? Relate at least three of their…

A:

Q: Using appropriate examples, name the four mollusk groups anddiscuss the traits that define them

A: Mollusks can be referred to as soft-bodied invertebrates belonging to the phylum Mollusca. They…

Q: Describe two adaptations that have enabled insects tothrive on land.

A: All insects belong to class Insecta of phylum Arthropoda. Many insects are very beneficial to…

Q: Are acoelomate flatworms basal bilaterians?

A: While classifying the animals based on their internal structures and external features, the presence…

Q: Explain the structure and functions of the mollusk mantle.

A: Mollusks are a phylum with a wide range of species. Mollusks can be as little as a grain of sand. A…

Q: Compare and contrast the chelicerae of spiders, scorpions, and horseshoe crabs.

A: Chelicerae looks at a collection of species including ticks, spiders, and horse crabs. The prosoma…

Q: earthworms and leeches belong to which phylum?

A: R.H. Whittaker grouped various organisms and proposed five kingdom classification namely: Protista,…

Q: Into which classes is the phylum Annelida divided?

A: Annelids are also known as segmented worms or ringed worms. Annelids are a large phylum, with more…

Q: How useful is the study of the nature of body cavity and coelom in theclassification of animals?

A: Animal classification is a system of grouping animals by their similar characteristics. It is also…

Q: Are snakes tetrapods? Explain.

A: Tetrapods includes land vertebrates with two pairs of pentadactyl limbs, cornified skin and lungs.…

Q: Which group of echinoderms has a biradial symmetry and tube feet all over its body?

A: Tube feet are one of the little adaptable or flexible cylindrical processes which present in the…

Q: Compare and contrast the symmetry and body shape of the different classes of echinoderms.

A: Phylum Echinodermata has five classes 1. Asteroidea (sea stars) 2. Ophiuroidea (brittle stars) 3.…

Q: What is the importance of torsion and shell coiling in gastropods along with their evolution?…

A: Torsion is the process in which the mantle cavity twists 180 degree with respect to the head and…

Q: What could be the reason behind the successful and remarkable diversification of gastropods over…

A: Gastropods are by far the largest group of molluscs, with more than 62,000 described living.

Q: What levels of organization do chordates have that sponges do not? Select all correct answers.…

A: The complexity in organisms depend on various factors. Body symmetry, level of organization, body…

Q: Why is the internal shell of Cephalopods significant to their adaptation?

A: Cephalopods have huge, advanced brains, and their brain-to-weight proportion is the biggest among…