Observe two different animals in your immediate environment. Class 9
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Observe two different animals in your immediate environment. Class 9
Question 1.
Observe two different animals in your immediate environment. What features help you distinguish between them? How do these features help place them into different groups? Class 9
Answer:
Observation of Two Animals: House Lizard and Earthworm:
| Feature | House Lizard | Earthworm |
| Body covering | Dry, scaly skin | Moist, smooth skin |
| Legs | Four legs present | No legs |
| Body symmetry | Bilateral | Bilateral |
| Segmentation | Absent | Present |
| Backbone | Present (vertebrate) | Absent (invertebrate) |
| Body shape | Flattened, elongated | Cylindrical |
| Breathing | Lungs | Skin |
How These Features Help in Classification: Earthworm is placed in:
- Kingdom: Animalia
- Phylum: Annelida — because of segmented, cylindrical body and moist skin.
House Lizard is placed in:
- Kingdom: Animalia
- Phylum: Chordata, Class: Reptilia — because of backbone, scaly skin and lungs.