All questions of Plants and Animals for Class 6 Exam

i) Ostrich-like appearance with long bare legs:
The description of an animal with an ostrich-like appearance and long bare legs refers to a bird species known as the Great Indian Bustard. Let's explore why this is the correct answer:

Appearance:
- The Great Indian Bustard has a large and heavy body, similar to an ostrich, with a height ranging from 1 to 1.3 meters.
- It has long, slim, and bare legs that are perfectly adapted for running and walking.

ii) Black cap contrasting with the pale head and neck:
The second description of an animal with a black cap contrasting with a pale head and neck also matches the appearance of the Great Indian Bustard. Here's why:

Coloration:
- The Great Indian Bustard has a distinctive black cap on its head, which contrasts with the pale color of the rest of its head and neck.
- This coloration makes it easily identifiable in the wild and helps it blend in with its grassland habitat.

Explanation:
- The Black Buck is a species of antelope found in the Indian subcontinent but does not have an ostrich-like appearance or a black cap contrasting with a pale head and neck.
- The White-bellied Heron is a large bird found in the Himalayan region and has a different appearance and coloration compared to the given description.
- The Spoon-billed Sandpiper is a small wading bird with a unique spoon-shaped bill, but it does not have an ostrich-like appearance or a black cap.

In conclusion, the animal that matches the given description of an ostrich-like appearance with long bare legs and a black cap contrasting with a pale head and neck is the Great Indian Bustard.

Endangered Species in Kaziranga National Park
Kaziranga National Park, located in Assam, India, is renowned for its biodiversity and is particularly famous for its population of the one-horned rhinoceros. Here's a detailed look at why the one-horned rhinoceros is the correct answer among the options provided:
One-Horned Rhinoceros
- The one-horned rhinoceros (Rhinoceros unicornis) is a flagship species of Kaziranga National Park.
- This species is considered endangered due to habitat loss and poaching, primarily for their horns.
- Kaziranga is home to the largest population of this species in the world, making it a critical habitat for its conservation.
Other Species
- Snow Leopard:
- Snow leopards (Panthera uncia) are not found in Kaziranga. They inhabit the mountainous regions of the Himalayas.
- Spoon-Billed Sandpiper:
- The spoon-billed sandpiper (Calidris pygmaea) is a migratory bird found in coastal areas, not in the grasslands and wetlands of Kaziranga.
Conclusion
Kaziranga National Park is primarily known for the one-horned rhinoceros, making it the correct answer. The park's conservation efforts have been crucial in protecting this endangered species, while the other two species listed do not inhabit this national park. Thus, option 'A' is the only accurate choice among the given options.

Understanding Critically Endangered Species
Critically endangered species are those that face an extremely high risk of extinction in the wild. This classification is vital for conservation efforts and biodiversity preservation.
Key Characteristics of Critically Endangered Species:
- Extremely High Risk:
- These species have a very limited population and are often down to fewer than 50 individuals in the wild.
- Habitat Loss:
- One of the primary reasons for their critical status is habitat destruction due to human activities like deforestation, urbanization, and pollution.
- Low Reproductive Rates:
- Many critically endangered species have low reproduction rates, making it difficult for their populations to recover.
- Increased Threats:
- Factors such as poaching, climate change, and invasive species exacerbate their risk, pushing them closer to extinction.
Why is Option A Correct?
- Definition Clarity:
- Option A explicitly states that these species are at an "extremely high risk of extinction in the wild," which aligns with the scientific criteria set by organizations like the International Union for Conservation of Nature (IUCN).
- Comparison to Other Options:
- Options B and C describe less severe risk categories, while D implies survival only in captivity, which does not necessarily define critically endangered status.
Importance of Conservation:
- Biodiversity Preservation:
- Protecting critically endangered species is crucial for maintaining ecological balance.
- Conservation Efforts:
- Efforts like habitat restoration, legal protection, and breeding programs are essential to help prevent extinction.
Understanding and addressing the needs of critically endangered species is vital for our planet's future, emphasizing the importance of conservation efforts.

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