MEDIUM
Earn 100
Read the following match about phylum and it's one chatacter:
I. Annelida: First-time true coelom (schizocoelom) present in them.
II. Arthropoda: Only metamerically segmented animals with hemocoel.
III. Echinodermata: Have exoskeleton of calcareous ossicles and spines.
IV. Hemichordata: Small worm-like marine animals with true notochord.
How many from the above is/are the correct match?
50% studentsanswered this correctly
Important Questions on The Living World
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Reason (R): Species have similar structure and functional characteristics.
The correct option among the following is:
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Taxonomic category showing individual organisms with fundamental similarities
Taxonomic category with same hierarchical status
Dicotyledonae
domestica
indica
Insecta
Mangifera
sapiens
Mammalia
Monocotyledonae
vulgare
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Match the following
| List - I | List - II | ||
| (a) | Asymmetry | (i) | Cnidaria |
| (b) | Radial symmetry | (ii) | Platyhelminthes |
| (c) | Bilateral symmetry and Enterocoelom | (iii) | Porifera |
| (d) | Bilateral symmetry without body cavity | (iv) | Hemichordata |
The correct answer is
EASY
*Note: There was an error in the question of the original paper which is modified here.
EASY
Match the following and choose correct combination.
| Column I | Column II | ||
| i) | Cellular grade level | a) | Pheretima |
| ii) | Tissue grade level | b) | Schistosoma |
| iii) | Organ level | c) | Obelia |
| iv) | Organ system level | d) | Sycon |
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Assertion: Species is an ecological unit.
Reason: Individuals of a species share the same ecological niche.
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Assertion : Sub species shows minor variations from parent population
Reason : Sub species is reproductively isolated population of a species
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Which of the following phyla possess body cavity as shown in the diagram below?
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EASY
| Column-I | Column-II | ||
| P | Mollusca | i | Pseudocoelom |
| Q | Annelida | ii | Radula |
| R | Nematoda | iii | Radial symmetry |
| S | Echinodermata | iv | Segmentation |
Choose the CORRECT combination.
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Consider following features:
- Organ system level of organisation
- Bilateral symmetry
- True coelomates with segmentation of body.
Select the correct option of animal group which possess all the above characteristics:
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HARD
Match the following
| List - I | List - II | ||
| (a) | Reproductively isolated from the individuals of other species | (i) | Genetic unit |
| (b) | Sharing the same ecological niche | (ii) | An evolutionary unit |
| (c) | Showing similarity in the karyotype | (iii) | A breeding unit |
| (d) | Having similar structural and functional characteristics | (iv) | An ecological unit |
The correct answer is
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A. Definition of biological species was given by Ernst Mayr.
B. Photoperiod does not affect reproduction in plants.
C. Binomial nomenclature system was given by R.H. Whittaker.
D. In unicellular organisms, reproduction is synonymous with growth.
The two correct statements are:
