Home
Class 12
BIOLOGY
Echinodermata I.is the largest animal ...

Echinodermata
I.is the largest animal phylum to lack any freshwater or terrestrial representatives .
II.constitutes the only major group of deuterostome .
III.are diploblastic animals .
IV.have direct development with out any larval stage .
Choose the correct option .

A

I , II and III

B

I and II

C

II and IV

D

I and III

Text Solution

Verified by Experts

The correct Answer is:
B
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ANIMALIA-II (HIGHER INVERTEBRATES)

    ARIHANT NEET|Exercise Chapter Exercises Match the columns|8 Videos

  • ANIMALIA-II (HIGHER INVERTEBRATES)

    ARIHANT NEET|Exercise Chapter Exercises Assertion and Reason|14 Videos

  • ANIMALIA-II (HIGHER INVERTEBRATES)

    ARIHANT NEET|Exercise Chapter Exercises B) Medical entrances special format questions (Statement based questions)|22 Videos

  • ANIMALIA -I (LOWER INVERTEBRATES)

    ARIHANT NEET|Exercise CHAPTER EXERCISES (Taking it together) medical entrances gallery (Collection of Questions Asked in NEET & in various Entrance Exams))|68 Videos

  • ANIMALIA-III (CHORDATES)

    ARIHANT NEET|Exercise MEDICAL ENTRANCES GALLARY (COLLECTION OF QUESTIONS ASLED IN NEET & VARIOUS MEDICAL ENTREANCE EXAMS)|76 Videos

Similar Questions

Explore conceptually related problems

Given figures (i), (ii), (iii) and (iv) represent certain parts/structures of animals. Identify the pairs of structures that are analogous to each other and select the correct option.

Read the following four statements (I - IV) I. All mammals exclusively respire by using lungs except Balaenoptera. II. In Aves, the skin is dry without any glands except the sudorific gland at the base of the tail. III. Chameleon is a camouflaged tree lizard with a prehensile tail. IV. Amphibia is the only tetrapod vertebrate which has external fertilization with indirect development . How many statement is / are correct from the above ?

Knowledge Check

  • Read the statements regarding echinoderms. (I). All are marine with organ system level of organisation. (II) Adults are bilaterally symmetrical (III).They are dioecious (IV).Fertilisation is internal and indirect development is observed (v) Triploblastic and acoelomate animals. Choose the correct option.

    A
    (i) and (iii) are correct
    B
    (v) alone is correct
    C
    (i),(iii)and (v) are correct
    D
    (i) and (v) are correct

  • In order-Primata have I. Testes enclosed in scrotum. II. Cerebrum is reduced. III. Animals like lemurs, monkeys and apes. IV. Lack haemochorial placenta. Choose the correct option.

    A
    I, II and III
    B
    I and II
    C
    II and IV
    D
    I and III

  • Read the statement about characteristic features of class- Monoplacophora. I. Body is flat , bilaterally symmetrical and oval -shaped . II . The animals bear nephridia and internal segmentation like annelids . III . This is the only class among molluscs which includes monoecious species . IV. The body is enclosed in a mantle which secrets a dome-shaped outer shell . Choose the option with correct codes

    A
    I, II and IV
    B
    I and II
    C
    II and IV
    D
    I and III

    • Similar Questions

    Explore conceptually related problems

    The statements given below describe certain features of some common amphibians. Read them carefully and identify which statements are True (T) and False(F). I. the male Pipa carries eggs around its thighs still the tadpoles are ready to hatch. II. Alytes carries the eggs and tadpoles in its vocal sac. III. Salamandra alra is a vovoviviparous animal. IV. The eggs of Inhthyphis are guarded by the male. ,Choose the correct option.

    Some of the statements are given below I. Porifera to Echinodermata lack a notochord. II. Platyhelminthes display tissue level organisation. III. Mesoglea is present in coelenterates during development. IV. Aschelminthes are coelomates. Choose the correct option for true statement.

    Heterosis I. means the increased vigour of a hybrid than its parent. ii. Has been experimentallyintroduced in a large number of plants and animals iii.in plants is expressed in increased number of zygotes. iv. In animals is expressed as increased resistance to environmental factors. choose the correct option.

    Bundles of muscles fibres are grouped as fascicule, which I. is held together and enclosed by collagen fibres and by connective tissue. II. Is surrounded by tough external layer, called fascia. III. Contains an abundance of glycogen. Iv. is developed by repeated divisions of myoblasts. Choose the option with the correct statements.

    Consider the following statement I.Non metals have strong tendency to lose electron II.Electronegativity is directly related to non metallic properties of elements III.electronegativity is inversely proportional to the metallic properties of elements IV.increase in electronegativity down a group is accompanied by a decrease in non metallic properties Choose the correct option

    Home
    Profile