Which one of the following is a matching pair of a
body feature and the animal possessing it?
(a) Ventral central – Leech
nervous system
(b) Pharyngeal gill slits – Chamaeleon
absent in embryo
(c) Ventral heart – Scorpion
(d) Post-anal tail – Octopus

1 Answer

Answer :

(a) Ventral central – Leech
nervous system

Related questions

Description : Given below are four matchings of an animal and its kind of respiratory organ: (A) Silver fish – Trachea (B) Scorpion – Book lung (C) Sea squirt – Pharyngeal slits (D) Dolphin – Skin The correct matchings are (a) (A) and (B) (b) (A), (B) and (C) (c) (B) and (D) (d) (C) and (D).

Last Answer : (b) (A), (B) and (C)

Description : Which one of the following groups of three animals each is correctly matched with their one characteristic morphological feature? Animals Morphological features (a) Scorpion, spider, - Ventral solid ... symmetry sea anemone, sea cucumber (d) Centipede, prawn, - Jointed appendages sea urchin

Last Answer : (a) Scorpion, spider, – Ventral solid central cockroach nervous system

Description : pharyngeal gill slits in embryonic stage is a a) Anatomical evidence b) morphological evidence c) Embryological evidence d) fossil evidence

Last Answer : c) Embryological evidence

Description : Crocodile and penguin are similar to whale and dogfish in which one of the following features? (a) Possess a solid single stranded central nervous system (b) Lay eggs and guard them till they hatch (c) Possess bony skeleton (d) Have gill slits at some stage

Last Answer : (d) Have gill slits at some stage

Description : Important characteristic that hemichordates share with chordates is (a) ventral tubular nerve cord (b) pharynx with gill slits (c) pharynx without gill slits (d) absence of notochord.

Last Answer : (b) pharynx with gill slits

Description : An important characteristic that Hemichordates share with Chordates is : (1) Ventral tubular nerve cord (2) Pharynx with gill slits (3) Pharynx without gill slits (4) Absence of notochord

Last Answer : (2) Pharynx with gill slits

Description : Which one of the following is a matching pair of a body feature and the animal possessing it?

Last Answer : Which one of the following is a matching pair of a body feature and the animal possessing it ... Pharyngeal gill slits absent in embryo - Chamaeleon.

Description : Sharks and dogfishes differ from skates and rays because (a) gill slits are ventrally placed (b) head and trunk are widened considerably (c) distinct demarcation between body and tail (d) their pectoral fins distinctly marked off from cylindrical bodies

Last Answer : (d) their pectoral fins distinctly marked off from cylindrical bodies

Description : Sharks and dogfishes differ from skates and rays because (a) gill slits are ventrally placed (b) head and trunk are widened considerably (c) distinct demarcation between body and tail (d) their pectoral fins distinctly marked off from cylindrical bodies.

Last Answer : (d) their pectoral fins distinctly marked off from cylindrical bodies.

Description : In which of the following animals post anal tail is found? (a) Earthworm (b) Lower invertebrates (c) Scorpion (d) Snake

Last Answer : (d) Snake

Description : Which of the following characters is absent in all chordates? (a) Diaphragm (b) Coelom (c) Pharyngeal gill clefts (d) Dorsal nerve cord

Last Answer : (a) Diaphragm

Description : Structure common between earthworm and cockroach is Or Which one feature is common to leech cockroach and scorpion

Last Answer : Structure common between earthworm and cockroach is Or Which one feature is common to leech ... Excretion by nephridia D. Ventral nerve cord

Description : Marine bony fish have body fluids hypotonic to sea water and tend to lose water from the body through (a) Gill membrane (b) Oral membrane ( c) Anal me

Last Answer : Marine bony fish have body fluids hypotonic to sea water and tend to lose water from the body through (a) Gill ... and (c) only D. (b) and (c) only

Description : Assertion :- The aquatic mammals like Dolphins whales etc. do not contain gill slits. Reason : Their adaptation to aquatic life secondary.

Last Answer : Assertion :- The aquatic mammals like Dolphins whales etc. do not contain gill slits. Reason : Their ... . D. If both Assertion & Reason are false.

Description : Match the following columns and select the correct option. Column-I Column-II (A) 6-15 pairs of gill slits (i) Trygon (B) Heterocercal caudal fin (ii) Cyclostomes (C) Air bladder (iii) Chondrichthyes (D) Poison sting (iv) Osteichthyes ... (i) (ii) (c) (iv) (ii) (iii) (i) (d) (i) (iv) (iii) (ii)

Last Answer : (a) (ii) (iii) (iv) (i)

Description : Select the correct statement from the ones given below with respect to Periplaneta americana. (a) Nervous system located dorsally, consists of segmentally arranged ganglia joined by a pair of longitudinal ... midgut and hindgut. (d) Grinding of food is carried out only by the mouth parts.

Last Answer : (b) Males bear a pair of short thread like anal styles.

Description : Select the correct statement from the ones given below with respect to Periplaneta americana (1) Grinding of food is carried out only by the mouth parts (2) Nervous system located dorsally, consists ... (4) There are 16 very long Malpighian tubules present at the junctions of midgut and hindgut

Last Answer : (3) Males bear a pair of short thread like anal styles

Description : In male sharks, Claspers are found attached to (1) Anal fin (2) Pectoral fin (3) Pelvic fin (4) Ventral fin

Last Answer : Pelvic fin

Description : A post -anal tail is found in

Last Answer : A post -anal tail is found in A. Earthworm B. Lower invertebrate C. Scorpion D. Snake

Description : A chordate character is (a) gills (b) spiracles (c) post-anal tail (d) chitinous exoskeleton

Last Answer : (c) post-anal tail

Description : What is common between parrot, platypus and kangaroo? (a) Toothless jaws (b) Functional post-anal tail (c) Ovoparity (d) Homoiothermy

Last Answer : (d) Homoiothermy

Description : With reference to plant tissue culture select the matching pair: (1) Sterile triploid—banana and seedless fruit (2) Somaclonal variations—differences appearing (3) Embryoids—non-zygatic embryo produced from somatic cells (4) Pulses—belong to cruciferae

Last Answer : Ans. ((a))

Description : Which of the following represents the correct combination without any exception ? Characteristics Class (a) Sucking and circular mouth; jaws absent, integument without scales; paired ... Mouth ventral; gills without operculum; skin with placoid scales; persistent notochord. Chondrichthyes

Last Answer : (c) Mammary gland; hair on body; pinnae; two pairs of limbs. Mammalia

Description : If the head of cockroach is removed, it may live for few days because (a) the supra-oesophageal ganglia of the cockroach are situated in ventral part of abdomen (b) the cockroach does not have nervous ... a 1/3rd of a nervous system while the rest is situated along the dorsal part of its body.

Last Answer : (c) the head holds a small proportion of a nervous system while the rest is situated along the ventral part of its body

Description : Which of the following statements are true for the Phylum Chordata? (A) In Urochordata, notochord extends from head to tail and it is present throughout their life. (B) In Vertebrata, notochord is present during the embryonic period only. (C ... (C) (b) (C) and (A) (c) (A) and (B) (d) (B) and (C)

Last Answer : (d) (B) and (C)

Description : Ladder like nervous system with ventral nerve chord is present in

Last Answer : Ladder like nervous system with ventral nerve chord is present in A. Cnidaria B. Plathyhelminthes C. Annelida D. Arthropoda

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 : After the neurula stage and from its ventral portion to the dorsal how can the morphology of the embryo be described ?

Last Answer : In a schematic longitudinal section of the embryo after the neurula stage, the outermost layer of cells is the ectoderm. In the ventral region comes the archenteron tube formed of endodermal cells. In both ... is the notochord. In the dorsal region just above the notochord lies the neural tube.

Description : After the neurula stage and from its ventral portion to the dorsal how can the morphology of the embryo be described ?

Last Answer : In a schematic longitudinal section of the embryo after the neurula stage, the outermost layer of cells is the ectoderm. In the ventral region comes the archenteron tube formed of endodermal cells. In both ... is the notochord. In the dorsal region just above the notochord lies the neural tube.

Description : You find a herbaceous flowering plant growing in your school garden having leaves with parallel venation. Choose the correct additional features the given plant would be possessing. (I) It has no secondary vascular tissues. (II) Its flower ... (2) (I) and (III) (3) (II) and (IV) (4) (III) and (IV)

Last Answer : 1) (I) and (II)

Description : Which of the following animals does not have nervous system? (1) Leech (2) Tapeworm (3) Amoeba (4) Snail

Last Answer : (3) Amoeba Explanation: The amoebas do not have nervous system, but they communicate by means of the interaction of the cellular membrane with the outside that surrounds to him. Like ... communication produces a reaction of the complete cell, moving away or approaching the respective stimulus.

Description : Which of the following animals does not have nervous system? (1) Leech (2) Tapeworm (3) Amoeba (4) Snail

Last Answer : Amoeba

Description : Animals have the innate ability to escape from predation. Examples for the same are given below. Select the incorrect example. (a) Colour change in Chamaeleon (b) Enlargement of body size by swallowing air in puffer fish (c) Poison fangs in snakes (d) Melanism in moths

Last Answer : (c) Poison fangs in snakes

Description : $ Scorpion has a sting in its tail ! Tube feet are present in starfish

Last Answer : $ Scorpion has a sting in its tail ! Tube feet are present in starfish A. If both As and R are correct ... R is wrong D. If both As and R are wrong.

Description : Select the correct option with respect to cockroaches. (a) Malpighian tubules convert nitrogenous wastes into urea. (b) Males bear short anal styles not present in females. (c) Nervous system comprises of a ... cord and ten pairs of ganglia. (d) The forewings are tegmina which are used in fligh

Last Answer : (b) Males bear short anal styles not present in females

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 : Which one of the following is a matching pair of an animal and a certain phenomenon it exhibits?

Last Answer : Which one of the following is a matching pair of an animal and a certain phenomenon it exhibits ... C. Chamelon- Mimicry D. Taenia - Polymorphism

Description : Which one of the following is the matching pair of a sanctuary and its main protected wild animal

Last Answer : Which one of the following is the matching pair of a sanctuary and its main protected wild animal ... Sunderbans-Rhino D. N.E. Himalayan region-Sambar

Description : Which of the following is the matching pair of a sanctuary and its main protected wild animal? (a) Kaziranga-Musk deer (b) Gir-Lion (c) Sunderban-Rhino (d) All of these

Last Answer : (b) Gir-Lion

Description : Which one of the following is a matching pair of an animal and a certain phenomenon it exhibits? (a) Pheretima – Sexual dimorphism (b) Musca – Complete metamorphosis (c) Chameleon – Mimicry (d) Taenia – Polymorphism

Last Answer : (b) Musca – Complete metamorphosis

Description : Which type of sleep apnea is characterized by lack of airflow due to pharyngeal occlusion? a) Obstructive Obstructive sleep apnea occurs usually in men, especially those who are older ... central sleep apnea, the patient demonstrates simultaneous cessation of both airflow and respiratory movements.

Last Answer : a) Obstructive Obstructive sleep apnea occurs usually in men, especially those who are older and overweight.

Description : A unique ultrastructural feature of Giardia is the adhesive disk also called as D A. Ventral disk B. Sucking disk C. Sucker D. All above

Last Answer : All above

Description : What is the effect of increasing the number of slits on the intensity of Central maxima of diffraction pattern of a diffraction grating? A. Intensity of central maxima will decrease B. Intensity ... maxima will increase C. There will not be any effect D. Diffraction pattern will disappear

Last Answer : B. Intensity of central maxima will increase

Description : Which one of the following statements regarding post-fertilisation development in flowering plants is incorrect? (a) Ovules develop into embryo sac. (b) Ovary develops into fruit. (c) Zygote develops into embryo. (d) Central cell develops into endosperm

Last Answer : (a) Ovules develop into embryo sac.

Description : which of the following is the smallest taxonomic grounp of animals having a cranium , vertabral column , ventral heart , pulmonary respiration and two

Last Answer : which of the following is the smallest taxonomic grounp of animals having a cranium , vertabral ... B. Gnathostomata C. Vertebrata D. Tetrapoda

Description : Which one of the following animals is correctly matched with its one characteristic and the taxon? Animal Characteristic Taxon (a) Millipede Ventral nerve Arachnida cord (b) Sea anemone ... Cnidaria (c) Silver fish Pectoral and Chordata pelvic fins (d) Duckbilled Oviparous Mammalia platypus

Last Answer : (d) Duckbilled Oviparous Mammalia platypus

Description : Which one of the following animals is correctly matched with its one characteristic and the taxon? Animal Characteristic Taxon (a) Millipede Ventral nerve Arachnida cord (b) Sea anemone ... Cnidaria (c) Silver fish Pectoral and Chordata pelvic fins (d) Duckbilled Oviparous Mammalia platypus

Last Answer : (d) Duckbilled Oviparous Mammalia platypus

Description : The subphylum in which notochord is present only in the tail region of the larvae and absent in adults is

Last Answer : Urochordata.

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 : Leech is an animal of which episode ?

Last Answer : Leech is an animal of the Annelida episode.