The figures (A – D) show four animals. Select the correct option with respect to a common characteristic of two of these animals. (A) (B) (C) (D) (a) (A) and (D) respire mainly through body wall. (b) (B) and (C) show radial symmetry. (c) (A) and (B) have cnidoblasts for self-defence. (d) (C) and (D) have a true coelom

The figures (A – D) show four animals. Select
the correct option with respect to a common
characteristic of two of these animals.
(A) (B)
(C) (D)
(a) (A) and (D) respire mainly through body wall.
(b) (B) and (C) show radial symmetry.
(c) (A) and (B) have cnidoblasts for self-defence.
(d) (C) and (D) have a true coelom
by

1 Answer

Answer :

(d) (C) and (D) have a true coelom.
by

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When any plane passing through the central axis of the of the body divides the organism into two identical halves, it is radial symmetry. Which of the

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Last Answer : (c) Arthropoda - body divided into head, thorax and abdomen and respiration by tracheae

Examine the figures (A-D) given below and select the right option out of (a – d), in which all the four structures A, B, C and D are identified correctly. A B D

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What does asymmetry and radial symmetry have in common?

Description : What does asymmetry and radial symmetry have in common?

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The figure given below shows a small part of human lung where exchange of gases takes place. Select the option which represents labelled part (A, B, C or D) correctly identified along with its function. (a) C : Arterial capillary - Passes oxygen to tissues (b) A : Alveolar cavity - Main site of exchange of respiratory gases (c) D : Capillary wall - Exchange of O2 and CO2 takes place here (d) B : Red blood cells - Transport of CO2 mainly

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Which one occurs in echinodermata? (a) Bilateral symmetry (b) Radial symmetry (c) Porous body (d) Soft skin

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The organisms attached to the substratum, generally, possess (a) one single opening of the digestive canal (b) cilia on the surface to create water current (c) radial symmetry (d) asymmetrical body

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Last Answer : (c) radial symmetry

Coelom is found between (a) body wall and ectoderm (b) ectoderm and endoderm (c) mesoderm and body wall (endoderm) (d) mesoderm and ectoderm.

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Consider the following four statements (A–D) related to the common frog Rana tigrina, and select the correct option stating which ones are true (T) and which ones are false (F). Statements: A. On dry land it would die due to lack of O2 if its mouth is forcibly kept closed for a few days. B. It has four-chambered heart. C. On dry land it turns uricotelic from ureotelic. D. Its life-history is carried out in pond water. A B C D (a) T F F T (b) T T F F (c) F F T T (d) F T T F

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Last Answer : (a) T F F T

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 central cockroach nervous system (b) Cockroach, locust, – Metameric Taenia segmentation(c) Liver fluke, – Bilateral symmetry sea anemone, sea cucumber (d) Centipede, prawn, – Jointed appendages sea urchin

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

What kind of symmetry is shown in animals whose body can only be divided in one plane to show mirror images?

Description : What kind of symmetry is shown in animals whose body can only be divided in one plane to show mirror images?

Last Answer : bilateral

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Last Answer : (b) Denitrification Ammoni- Plants Animals fication

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Last Answer : (d) i) equality ii) liberty iii) self-respect

Select the correct option in respect of characteristics of each group :

Description : Select the correct option in respect of characteristics of each group :

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Select the correct option with respect to mitosis

Description : Select the correct option with respect to mitosis

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Description : Select the correct option with respect to mitosis. (a) Chromatids separate but remain in the centre of the cell in anaphase. (b) Chromatids start moving towards opposite poles in telophase. (c ... . (d) Chromosomes move to the spindle equator and get aligned along equatorial plate in metaphase.

Last Answer : (d) Chromosomes move to the spindle equator and get aligned along equatorial plate in metaphase.

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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 dorsal nerve cord and ten pairs of ganglia. (d) The forewings are tegmina which are used in fligh

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

Radial symmetry is found in the flowers of

Description : Radial symmetry is found in the flowers of

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In which of the following phyla, the adult shows radial symmetry while the larva has bilateral symmetry?

Description : In which of the following phyla, the adult shows radial symmetry while the larva has bilateral symmetry?

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What has phylum of animal has radial symmetry?

Description : What has phylum of animal has radial symmetry?

Last Answer : Cnidaria (Hydra, jellyfish, sea anemones, corals, etc.),generally have radial symmetry, although not all sea anemones orcorals do. Echinodermata.

Is the tubular-dorsal nervous system of chordates associated to radial or lateral symmetry?

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?

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?

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?

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Radial symmetry is found in the flowers of (a) Brassica (b) Trifolium (c) Pisum (d) Cassia.

Description : Radial symmetry is found in the flowers of (a) Brassica (b) Trifolium (c) Pisum (d) Cassia.

Last Answer : (a) Brassica

Match List-I (Type of Anti-friction bearing) with List-II (Specific Use) and select the using the code given below the Lists: [IES-2006] List-I List -II A. Self-aligning ball bearing 1. For pure axial load B. Taper roller bearing 2. For hinged condition C. Deep groove ball bearing 3. For pure radial load D. Thrust ball bearing 4. For axial and radial load A B C D A B C D (a) 2 1 3 4 (b) 3 4 2 1 (c) 2 4 3 1 (d) 3 1 2 4

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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) Salamandra (i) A tympanum Amphibia represents ear (ii) Fertilization is external (c) Pteropus (i) Skin possesses Mammalia hair (ii) Oviparous (d) Aurelia (i) Cnidoblasts Coelenterata (ii) Organ level of organization

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Last Answer : (a) Ascaris (i) Body segmented Annelida (ii) Males and females distinct

The figure shows a section of human ovary. Select the option which gives the correct identification of either A  or  B with function/characteristic(a) B- Corpus luteum - Secretes progesterone (b) A- Tertiary follicle - Forms Graafian follicle (c) B- Corpus luteum - Secretes estrogen (d) A- Primary oocyte - It is in the prophase I of the meiotic division

Description : The figure shows a section of human ovary. Select the option which gives the correct identification of either A  or  B with function/characteristic (a) B- Corpus luteum - Secretes progesterone (b) A- ... Secretes estrogen (d) A- Primary oocyte - It is in the prophase I of the meiotic division

Last Answer : (a) B- Corpus luteum - Secretes progesterone

The figure shows a diagrammatic view of human respiratory system with labels A, B, C and D. Select the option which gives correct identification and main function and / or characteristic. (a) C - Alveoli - Thin walled vascular bag like structures for exchange of gases. (b) D - Lower end of lungs - Diaphragm pulls it down during inspiration. (c) A - Trachea - Long tube supported by complete cartilaginous rings for conducting inspired air. (d) B - Pleural membrane - Surround ribs on both sides to provide cushion against rubbing.

Description : The figure shows a diagrammatic view of human respiratory system with labels A, B, C and D. Select the option which gives correct identification and main function and / or characteristic. (a) C - ... air. (d) B - Pleural membrane - Surround ribs on both sides to provide cushion against rubbing.

Last Answer : (a) C - Alveoli - Thin walled vascular bag like structures for exchange of gases.