The arthropods have a metameric body with segments organized into functional groups called

Q: Unlike other coelomate animal phyla, mollusks lacka. segmentation.b. cephalization.c. three primary…

A: Coelomate animals are those that contain a body cavity enclosing coelom with a complete lining…

Q: Cnidocytes are found in _____. a. phylum Porifera b. phylum Nemertea c. phylum Nematoda d. phylum…

A: There is a great diversity of organisms in the Kingdom Animalia. It is further divided into several…

Q: Members of Chondrichthyes are thought to be descended from fishes that had.. .....................

A: Chondrichthyes includes sharks, rays, and skates, as well as sawfish and a few fish species known as…

Q: Annelida and arthropoda because they have are more complex that other, simpler invertebrate groups

A: Noto chord is absent in non chordates. Non chordates are classified on the basis of -  1.Level of…

Q: Which of the following is not a member of the phylum Chordata? a. Cephalochordata b. Echinodermata…

A: Chordate can be defined as the animal that will belong to the phylum Chordata. There is some period…

Q: The tapeworms (cercomeromorpha) are not considered to be segmented animals because;

A: Animals (likewise called Metazoan) are multicellular eukaryotic creatures that structure the natural…

Q: The bodies of all insects have major divisions.

A: Answer : Option (b) is correct

Q: Which of the following classes of arthropod possess chelicerae? a. Chilopoda b. Crustacea c.…

A: Answer is d.) Chelicerata.

Q: Which of the following groups includes all of the others? a. Protostomes c. Eumetazoans b.…

A: Taxonomy is that the observe of distinguishing completely different organisms, classifying them into…

Q: Serial segmentation is a key characteristic of which of the following phyla? a. Mollusca b.…

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

Q: What is a key characteristic of all arthropods?a. Six legsb. Pseudocoelomc. Mandiblesd. Exoskeleton

A: Arthropods are the largest phylum among animal kingdom. They are non chordates and do not contain…

Q: The larval stage of a cnidarian is known as a a. medusa. b. planula. c. polyp. d. cnidocyte.

A: Non-chordates are the life forms that do not have any backbone or notochord in their structure.…

Q: Discuss the ecological importance of tapeworms.

A: Answer

Q: Choose all the phyla we looked at in this lab that have a hydrostatic skeleton. nematodes molluscs…

A: Nematodes, mollusca and annelids all the three have hydrostatic skeleton. The hydrostatic skeleton…

Q: Nematodes once were thought to be closely related torotifers due to the presence of a pseudocoelom…

A: Nematodes:         Nematodes can be otherwise known as roundworms, which comes under the hood of…

Q: Sponges are Radially symmetrical Bilaterally symmetrical Asymmetrical Dorso- ventrally…

A: The animals can be classified into three distinct classes depending on their body symmetry:…

Q: Compare and contrast the roundworm body structure with those of aflatworm and an annelid.

A: The Compare and contrast the roundworm body structure with those of a flatworm and an annelid are…

Q: Flatworms, annelids, and roundworms are all______ . a. arthropods c. protostomes b. aceolomate d.…

A: Vertebrates are organisms which possess backbone. They also possess notochord. Examples includes:…

Q: Drawing animal body plans to compare features: Draw a cross-sectional diagram comparing the animals…

A: Flatworm or Acoelomate are the animal without body cavity, they involve ectoderm,mesoderm, endoderm…

Q: A ciliated feeding structure in the larval stage is a characteristic of aa. trochozoan.b.…

A: The systematic classification of animals is necessary for the purposes of identification and…

Q: Earthworms are segmented animals. All of the following are present on/in most segments of an…

A: Origin The origin of earthworms was said to be on earth around 200 million ago. Their ancestors were…

Q: A coelom is a body cavity completely lined with (a) epithelium (b) ectoderm (c) mesoderm (d)…

A: In human beings, there are three embryonic germ layers that are responsible for the development of…

Q: Longitudinal muscles of roundworms have tissues similar to? Explain. a) cardiac muscle b) skeletal…

A: Roundworms belong to the phylum Nematoda. They have longitudinal muscles that run the length of the…

Q: Which statement about protostomes is true? O They are radially symmetrical. They have a complete…

A: The group of eukaryotic organisms that are heterotrophic and multicellular is called animals. There…

Q: Why are flatworms called acoelomates

A: Flatworms belongs to the phylum Platyhelminthes. They are unsegmented, bilaterally symmetrical…

Q: Draw a simple diagram (cross section) to distinguish between a coelomate and either a…

A: The coelom is the term used to describe a body cavity inside the body that contains and surrounds…

Q: An arthropod body is described as having three key features: A segmented body, an exoskeleton, and…

A: Arthropods are found in all parts of the world in a wide variety of environments. This phylum…

Q: Unlike the turbellarians earthworms have a complete digestive system. This means that;

A: Animals (likewise called Metazoan) are multicellular eukaryotic creatures that structure the natural…

Q: Which phylum is characterized by a "tube within a tube" structure? O Echinodermata Mollusca…

A: Tube within a tube phenomenon is referred to only one opening for ingestion and one opening for…

Q: Coelomate animals with a partitioned coelom likely possesses. a metanephridial system secretion…

A: Answer - Both proto and metanephridia

Q: In an ecdysozoan would cease if ecdysis did not occur.

A: Arthropoda (insects, chelicerata, crustaceans, and myriapods), Nematoda, and several smaller phyla…

Q: Identify the phylum/class of invertebrate that matches this description: These animals lack a…

A: Helminths are worm-like parasites that live by feeding on the living host. They gain protection and…

Q: Porifera v [ Choose ] tetraneury, chambered heart stomochord, pharyngeal gills aquiferous system…

A: Porifera : Are a group of animals also known as sponges, as they have pores on their body which…

Q: Nematodes differ from annelids in that they are segmented. they are triploblastic. they have a…

A: Nematodes are found in a variety of environments, such as soil, marine, and freshwater, and various…

Q: If an animal has coelom, you also would expect it to exhibit: cephalization bilateral symmetry a…

A: The coelom is the fundamental body cavity in many animals and is situated inside the body to…

Q: The body plan of an annelid displays. meaning that the body is divided into a series of repeated…

A: The phylum Annelida is an invertebrate phylum. Annelids are triploblastic coelomates with bilateral…

Q: List the appendages on the head of a crustacean. What other important characteristics of Crustacea…

A: Introduction  Crustaceans are the aquatic invertebrates that belongs to the phylum Arthropoda. The…

Q: Members of which phylum are known as "segmented worm" Write about their body symmetry, mode of…

A: The segmented worms belong to the phylum Annelids.  Annelids are also known as ringed worms. It is a…

Q: Leuconoid organization in sponges is correlated with large body size small body size minimal surface…

A: Leuconoid is one of three body organization category of sponges. They are most complex and largest…

Q: Compare a flatworm and a roundworm in terms of morphology.

A: Flatworms are parasitic invertebrates that belongs to the phylum Platyhelminthes while roundworms…

Q: Describe the characteristics of acoelomate flatworms

A: The study of biology that deals with the structure, function, evolutionary classification and…

Q: Describe a function for the following structures and name the phylum/class in which these structures…

A: Porifera are all aquatic, sessile and sedentary with a cylindrical or vase-like shaped.

Q: Compare and contrast the three "worm" phyla (Platyhelminthes, Nematoda and Annelida).

A: Worms refer to the animals that have characteristically cylindrical long body devoid of limbs and…

Q: Triploblastic animals that lacks a through-gut and coelom

A: Triploblastic organisms are the ones that are developed from three germ layers. These layers are…

Q: Which phylum of animals shows radial symmetry and has tentacles with stinging cells? Nematoda…

A: Based on the symmetry of the body, animals can be classified into three types, namely radial…

Q: Crustacea manage to swim backward by means of their (choose two) telson uropods siphon gill bailers…

A: Answer : telson and uropods are correct. - telson forms the part of tail fan in crustaceans. When it…