Which of the following options correctly represent the characteristic features of phylum Annelida?

1. Triploblastic, unsegmented body, and bilaterally symmetrical.
2. Triploblastic, a segmented body, and bilaterally symmetrical.
3. Triploblastic, flattened body, and acoelomate condition.
4. Diploblastic, mostly marine and radially symmetrical.

Subtopic:  Phylum Annelida |
 88%
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Match the following group of organisms with their respective distinctive characteristics and select the correct option:

Organisms

Characteristics

(a)

Platyhelminthes

(i)

Cylindrical body with no segmentation

(b)

Echinoderms

(ii)

Warm blooded animals with direct development

(c)

Hemichordates

(iii)

Bilateral symmetry with incomplete digestive system

(d)

Aves

(iv)

Radial symmetry with indirect development

 
Options: (a) (b) (c) (d)
1. (iii) (iv) (i) (ii)
2. (ii) (iii) (iv) (i)
3. (iv) (i) (ii) (iii)
4. (i) (ii) (iii) (iv)

Subtopic:  Phylum Ctenophora & Platyhelminthes | Phylum Echinodermata | Phylum Hemichordata | Study of Aves & Mammals |
 84%
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Match the following columns and select the correct option :

Column I Column II
(a) Aptenodytes  (i) Flying fox
(b) Pteropus  (ii) Angel fish
(c) Pterophyllum  (iii) Lamprey
(d) Petromyzon  (iv) Penguin

    

Options: (a) (b) (c) (d)
1. (iii) (iv) (ii) (i)
2. (iii) (iv) (i) (ii)
3. (iv) (i) (ii) (iii)
4. (ii) (i) (iv) (iii)

Subtopic:  General Introduction: Vertebrates & Agnatha | Comparative study of Cartilagenous & Bony Fishes | Study of Aves & Mammals |
 78%
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All vertebrates are chordates but all chordates are not vertebrates, why?

1.  Notochord is replaced by a vertebral column in the adults of some chordates.
2. The ventral hollow nerve cord remains throughout life in some chordates.
3. All chordates possess a vertebral column.
4. All chordates possess notochords throughout their lives. 

Subtopic:  Phylum Chordata |
 81%
From NCERT
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Correct position of floral parts over thalamus in the mustard plant is:

1. Gynoecium occupies the highest position, while the other parts are situated below it.
2. Margin of the thalamus grows upward, enclosing the ovary completely, and other parts arise below the ovary.
3. Gynoecium is present in the center and other parts cover it partially.
4. Gynoecium is situated in the center, and other parts of the flower are located at the rim of the thalamus, at the same level.

Subtopic:  Flower & Parts of Flower |
 81%
From NCERT
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Which of the following is the correct floral formula of Liliaceae?
 

1.
2.
3.
4.

Subtopic:  Families of Flowering Plant: I | Families of Flowering Plant: II | Families of Flowering Plant |
 86%
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Identify the correct features of Mango and Coconut fruits.

(i) In both, fruit is a drupe
(ii) Endocarp is edible in both
(iii) Mesocarp in Coconut is fibrous, and in Mango, it is fleshy
(iv) In both, the fruit develops from the monocarpellary ovary


Select the correct option from below:

1. (i), (iii) and (iv) only

2. (i), (ii) and (iii) only

3. (i) and (iv) only

4. (i) and (ii) only 

Subtopic:  Fruits & their Types |
 80%
From NCERT
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Large, empty colorless cells of the adaxial epidermis along the veins of grass leaves are:

1. Lenticels

2. Guard cells

3. Bundle sheath cells

4. Bulliform cells

Subtopic:  Monocot Leaf |
 83%
From NCERT
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Which of the following statements about cork cambium is incorrect?

1. It forms a secondary cortex on its outside
2. It forms a part of periderm
3. It is responsible for the formation of lenticels
4. It is a couple of layers thick
Subtopic:  Activity of Cork Cambium |
 59%
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In cockroach, identify the parts of the foregut in correct sequence:

1. Mouth → Oesophagus → Pharynx → Crop → Gizzard
2. Mouth → Crop → Pharynx → Oesophagus → Gizzard
3. Mouth → Gizzard → Crop → Pharynx → Oesophagus
4. Mouth → Pharynx → Oesophagus → Crop → Gizzard

Subtopic:  Cockroach: Digestive System (OLD NCERT) |
 72%
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