The feature that is not a characteristic of protochordata?
(a) Presence of notochord
(b) Bilateral symmetry and coelom
(c) Jointed legs
(d) Presence of circulatory system
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In some animal groups, the body is found divided into compartments with at least some organs. This characteristic feature is called:
Correct Answer is (B) Metamerism In some animals, the body is externally and internally divided into segments with a serial repetition of at least some organs. For example, in earthworm, the body...
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Which one is the most striking or (common) character of the vertebrates? (a) Presence of notochord
(a) Presence of notochord
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Hard calcium carbonate structures are used as skeleton by (a) Echinodermata (b) Protochordata (c) Arthropoda (d) Nematoda
(a) Echinodermata
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Which one of the following is NOT a characteristic of minerals? (a) They are created by natural processes.
Answer: (c) They are inexhaustible
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What is the special feature present in a human heart which does not allow mixing of blood
Heart is partitioned into four chambers
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Tick the correct answer: (i) Which is not an erosional feature of sea waves?
(i) – (a), (ii) – (c), (iii)-(a) , (iv) -(a), (v)-(b)
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Which characteristic is not correct about H_2SO_4 ?
(a) In H2SO4 , the S atom is present in its highest oxidation state of +6. Hence H2SO4 can act an oxidant only by gain of electrons
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Which of the following is not the characteristic of interhalogen compounds ? (a) They are more reactive than halogens
(d) Interhalogen compounds are not highly volatile
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Which is not an erosional feature of sea waves?
The correct answer is (b) Beach
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Which one of the following is not a major characteristic feature of biodiversity hot spots?
b. Abundance of endemic species
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