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)
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
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) |
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. |
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. |
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
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
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 |
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 |
Match the following columns with reference to cockroach and select the correct option:
| Column - I | Column - II |
| (a) Grinding of | (i) Hepatic caeca the food particles |
| (b) Secrete gastric | (ii) 10th segment juice |
| (c) 10 pairs | (iii) Proventriculus |
| (d) Anal cerci | (iv) Spiracles |
| (v) Alary muscles |
| Options: | (a) | (b) | (c) | (d) |
| 1. | (iii) | (i) | (iv) | (ii) |
| 2. | (iv) | (iii) | (v) | (ii) |
| 3. | (i) | (iv) | (iii) | (ii) |
| 4. | (ii) | (iii) | (i) | (iv) |
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