Description : Onchosphere occurs in (a) Ascaris (b) Fasciola (c) Taenia (d) Planaria.
Last Answer : (c) Taenia
Description : Liver rot is caused by a) Ascaris b) Fasciola c) Planaria d) Bipalium
Last Answer : b) Fasciola
Description : The nephridia in earthworm are analogous to (a) nematoblasts of Hydra (b) flame cells of Planaria (c) gills of prawn (d) trachea of insects.
Last Answer : (b) flame cells of Planaria
Description : The pathogen Microsporum responsible for ringworm disease in humans belongs to the same kingdom of organisms as that of (a) Taenia, a tapeworm (b) Wuchereria, a filarial worm (c) Rhizopus, a mould (d) Ascaris, a round worm.
Last Answer : (c) Rhizopus, a mould
Description : Locomotory organ in nereis a) Parapodia b) Tentacles c) Cilia d) Flagella
Last Answer : a) Parapodia
Description : A marine cartilaginous fish that can produce electric current is (a) Pristis (b) Torpedo (c) Trygon (d) Scoliodon.
Last Answer : b) Torpedo
Description : In which one of the following the genus name, its two characters and its class/phylum are correctly matched? (a) Ascaris (i) Body segmented Annelida (ii) Males and females distinct (b) ... hair (ii) Oviparous (d) Aurelia (i) Cnidoblasts Coelenterata (ii) Organ level of organization
Last Answer : (a) Ascaris (i) Body segmented Annelida (ii) Males and females distinct
Description : The principal nitrogenous exretory compound in humans is syntheised
Last Answer : The principal nitrogenous exretory compound in humans is syntheised A. in the liver, but eliminated ... and also eliminated by the same throguh bile
Last Answer : The principal nitrogenous exretory compound in humans is syntheised A. in kidneys but eliminated ... the liver, but eliminated mostly through Kidneys
Description : Which one of the following statements is totally wrong about the occurrence of notochord, while the other three are correct? (a) It is present only in larval tail in ascidian. (b) It is ... absent throughout life in humans from the very beginning. (d) It is present throughout life in Amphioxus.
Last Answer : (c) It is absent throughout life in humans from the very beginning.
Description : Example of cyclostomata a) Petromyzon b) Ascidia c) Amphioxus d) Narcine
Last Answer : a) Petromyzon
Description : What is true about Nereis, scorpion, cockroah and silver fish?
Last Answer : What is true about Nereis, scorpion, cockroah and silver fish? A. They all belong to the same ... possess dorsal heart. D. None of them is aquatic
Description : Clitellum is found in – (1) Leech (2) Snail (3) Nereis (4) Earthworm
Last Answer : (4) Earthworm Explanation: The clitellum is a thickened glandular and non-segmented section of the body wall near the head in earthworms and leeches, that secretes a viscid sac in which the eggs are deposited. Its main function is to store the eggs of the earthworm.
Description : What is true about Nereis, scorpion, cockroach and silver fish? (a) They all possess dorsal heart. (b) None of them is aquatic. (c) They all belong to the same phylum. (d) They all have jointed paired appendages.
Last Answer : (a) They all possess dorsal heart.
Description : Connecting link between Annelida and Arthropoda a) Nereis b) Limulus c) Peripatus d) Pheretima
Last Answer : c) Peripatus
Description : The connecting link between annelids and arthropods is a) Nereis b) Belostoma c) Peripatus d) Balanus
Description : Clitellum is found in (1) Leech (2) Snail (3) Nereis (4) Earthworm
Last Answer : Earthworm
Description : .Which one of the following animals possesses nerve cells but no nerves? (a) Hydra (b) Tapeworm (c) Earthworm (d) Frog’s tadpole
Last Answer : (a) Hydra
Description : Which of the following animals have scattered cells with cell - tissue grade organisation? (a) Sponge (b) Hydra (c) Liver fluke (d) Ascaris
Last Answer : (b) Hydra
Description : Planaria possesses high capacity of
Last Answer : Planaria possesses high capacity of A. metamorphosis B. regeneration C. alternation of generation D. bioluminescence
Description : Select the correct option Assertion Q. due to fragmentation in Planaria, each part develops the remaining body parts and becomes a complete animal Rea
Last Answer : Select the correct option Assertion Q. due to fragmentation in Planaria, each part develops the remaining body ... D. Q is correct but R is wrong.
Description : Illustrate the following with the help of suitable diagrams. a) Regeneration in Planaria b) Budding in Hydra c) Spore formation in Rhizopus
Last Answer : Illustrate the following with the help of suitable diagrams. a) Regeneration in Planaria b) Budding in Hydra c) Spore formation in Rhizopus
Description : Which one of the following is a matching set of a phylum and its three examples? (a) Porifera - Spongilla, Euplectella, Pennatula (b) Cnidaria - Bonellia, Physalia, Aurelia (c) Platyhelminthes - Planaria, Schistosoma, Enterobius (d) Mollusca - Loligo, Teredo, Octopus
Last Answer : (d) Mollusca - Loligo, Teredo, Octopus
Description : Planaria possesses high capacity of (a) metamorphosis (b) regeneration (c) alternation of generation (d) bioluminescence.
Last Answer : (b) regeneration
Description : Match the following genera with their respective phylum. (1) Ophiura (i) Mollusca (2) Physalia (ii) Platyhelminthes (3) Pinctada (iii)Echinodermata (4) Planaria (iv) Coelenterata (a) (1)-(iv), (2)-(i), (3)-(iii), (4)-(ii) (b) (1)-( ... , (3)-(iv), (4)-(ii) (d) (1)-(iii), (2)-(iv), (3)-(ii), (4)-(i)
Last Answer : (b) (1)-(iii), (2)-(iv), (3)-(i), (4)-(ii)
Description : Example of a digenetic parasite a) Entamoeba b) Enterobium c) Planaria d) schistosoma
Last Answer : d) schistosoma
Description : Comparison between Chordates and Non-chordates -Biology
Last Answer : answer:
Description : how do lower chordates survive on their adaptive features?
Last Answer : echinoderms, cnidaria and other forms
Description : In chordates, basically the pharynx is
Last Answer : In chordates, basically the pharynx is A. Perforated B. Non-perforated C. Present in the gut ... D. A source of thyroxin which controls meta morphosis
Description : Which of the following group of characters is present in all chordates in some or other stage in their life or Chordates differ from nonchordates in h
Last Answer : Which of the following group of characters is present in all chordates in some or other stage in ... D. Gill slits, vertebral column, and notochord
Description : Which of the following characters is shared by all chordates at some stage of life ?
Last Answer : Which of the following characters is shared by all chordates at some stage of life ? A. Notochord B. ... C. Pharyngeal gill slits D. All of the above
Description : Chordates are distingished from non- chordates by the presence of
Last Answer : Chordates are distingished from non- chordates by the presence of A. Brain B. Dorsal tubular hollow ... Ventral nerve cord D. Dorsal soild nerve cord
Description : The distinguishing feature of all chordates is
Last Answer : The distinguishing feature of all chordates is A. A ventrally placed nerve cord B. A water vascular system C. A chitinous exoskeleton D. Notochord
Description : Chordates process
Last Answer : Chordates process A. Dorsal nerve cord placed below gut B. Single hollow nerve cord placed dorsal to ... cord D. Single solid and ventral nerve cord
Description : Echinoderms are closely related to chordates due to the following characters .
Last Answer : Echinoderms are closely related to chordates due to the following characters . A. Tube- within - ... have mesodermal endoskeleton . D. All of these
Description : Echinoderms and chordates have
Last Answer : Echinoderms and chordates have A. Pseudocoel B. Shizocoelom C. Enterocoelom D. Hemocoel
Description : An important characteristic that Hemichordates share with Chordates is
Last Answer : An important characteristic that Hemichordates share with Chordates is (a) absence of notochord (b) ... gill slits (d) pharynx without gill slits
Description : Name the phylum that forms connecting link between Chordates and Non-chordates.
Last Answer : Name the phylum that forms connecting link between Chordates and Non-chordates.
Description : Which group of chordates possess sucking and circular mouth without jaws?
Last Answer : Which group of chordates possess sucking and circular mouth without jaws?
Description : In some chordates, the notochord is replaced by cartilaginous or bony vertebral column. Name the chordates which possess this character.
Last Answer : In some chordates, the notochord is replaced by cartilaginous or bony vertebral column. Name the chordates which possess this character.
Description : How do chordates reproduce?
Last Answer : Reproduction in beings of the phylum Chordata is sexual, with the exception of urochordates that can also reproduce asexually. In some classes (cyclostomes, osteichthyes fishes and amphibians) there is ... placental mammals are viviparous (embryos develop inside the mother's body, feeding from her).
Description : In chordates the nervous system is dorsal and highly cephalized while in most invertebrates the nervous system is ganglial and ventral.
Last Answer : What is the group of the phylum Chordata that first colonized the terrestrial environment?
Description : The tubular and dorsal nervous system of chordates is related to the cephalization in these animals and to bilateral symmetry. The presence of neural integrating centers with concentration of ... These features have been preserved by evolution as they provide adaptive advantage to their owners.
Last Answer : How can the tubular-dorsal nervous system in chordates be compared to the nervous pattern present in invertebrates?
Description : Is the tubular-dorsal nervous system of chordates associated to radial or lateral symmetry?
Last Answer : How does that explain the complexity level of the nervous system reached by the vertebrate evolutionary branch?
Description : What is the embryonic characteristic that evolutionarily makes echinoderms proximal to chordates?
Last Answer : Echinoderms and chordates are deuterostomes, i.e., in their embryonic development the blastopore turns into the anus. All other animals with complete digestive system are protostomes, i. ... digestive tube that appears in the embryonic development. Phylum Echinodermata - Image Diversity: blastopore
Description : What does radial symmetry mean? What is the type of symmetry found in chordates? Which are other phyla of the animal kingdom that present species with radial symmetry?
Last Answer : Radial symmetry means (biologically) that the animal structures are situated in a radial or circular pattern around a center point with nonexistence of sides, like right or left. An ... Echinodermata. (It is considered that the simplicity of poriferans does not characterize any symmetry.)
Description : What are the differences between vertebrates and the other chordates?
Last Answer : Vertebrates are different because they have a spinal column (vertebral column). In these animals the notochord of the embryonic stage is substituted by the vertebral column in adults.