All questions of Animal Life for Class 5 Exam

**Explanation:**

The correct answer is option **D) Frog**.

Frogs are amphibians, which means they can live both in water and on land. They undergo a process called metamorphosis, where they start their life as aquatic creatures and later develop into terrestrial animals.

Here is an explanation of why the answer is a frog:

**1. Breathing through Gills:**
- When a frog is in its larval stage, it is called a tadpole. Tadpoles have gills and they use them to breathe underwater, just like fish. They extract oxygen from the water through their gills.

**2. Transition to Lungs:**
- As the tadpole grows and undergoes metamorphosis, it starts developing lungs. This is a crucial step in the life cycle of a frog as it enables them to breathe on land.
- During metamorphosis, the tadpole gradually loses its gills and develops lungs. The gills are replaced by lungs, and the tail is absorbed into the body.

**3. Breathing on Land:**
- After metamorphosis, the frog becomes an adult and is capable of breathing air using its lungs. It no longer relies on gills for respiration.
- Adult frogs have a specialized respiratory system that allows them to breathe on land. They have a pair of lungs that help them extract oxygen from the air just like humans do.

In summary, while baby frogs (tadpoles) breathe through their gills underwater, adult frogs breathe through their lungs on land. This transition from gills to lungs during metamorphosis is a key characteristic of frogs, making them the correct answer to the given question.

**Habitat: The Surroundings of an Animal**

The correct answer is option 'B' - Habitat.

**Explanation:**

A habitat is the specific area or surroundings where an animal lives, grows, and finds all the necessary resources for survival. It provides food, water, shelter, and other essential conditions required by the animal to thrive and reproduce.

**Characteristics of a Habitat:**

1. **Physical Environment:** A habitat includes both the biotic (living) and abiotic (non-living) components. It encompasses various factors such as climate, soil, water availability, temperature, light intensity, and geographical features.

2. **Food and Water Sources:** Animals depend on their habitat to provide suitable food and water sources. Different habitats support different types of plants, insects, or prey animals that serve as food sources for specific species.

3. **Shelter:** Habitats offer different types of shelter, such as trees, burrows, caves, or coral reefs, depending on the environment. These shelters protect animals from predators, extreme weather conditions, and provide a safe place to rest or raise their young.

4. **Suitable Conditions for Reproduction:** Animals require a habitat that provides suitable conditions for reproduction. This includes appropriate mating areas, nesting sites, or breeding grounds, which are essential for the continuation of the species.

**Examples of Habitats:**

1. **Forest:** A forest habitat consists of a dense growth of trees, shrubs, and plants. It provides a diverse ecosystem with a wide variety of animals, birds, insects, and reptiles.

2. **Desert:** A desert habitat is characterized by extreme aridity and limited water availability. Animals living in deserts have adaptations to conserve water and withstand high temperatures.

3. **Ocean:** The ocean habitat includes various zones such as coral reefs, deep sea, and coastal areas. It supports a wide range of marine life, including fish, mammals, crustaceans, and algae.

4. **Grassland:** Grasslands are vast areas covered with grass and few scattered trees. They are home to grazing animals like zebras, antelopes, and bison.

In conclusion, a habitat plays a crucial role in determining an animal's survival and well-being. It provides the necessary resources and conditions for an animal to live, grow, and reproduce successfully.

Fish is the right answer

Animal X that eats plant parts, gives birth to young ones and feeds them with milk is a goat.

Explanation:

• Eating plant parts: The first characteristic mentioned is that the animal X eats plant parts. Goats are herbivores and feed on leaves, grass, and other plant materials.


• Giving birth to young ones: The second characteristic is that the animal X gives birth to young ones. Goats are mammals and give birth to live young ones.


• Feeding young ones with milk: The third characteristic is that the animal X feeds its young ones with milk. Goats are known for their milk production and are often raised for their milk.


• Elimination of other options: Option A, Fox, is a carnivore and does not eat plant parts. Option C, Tiger, is also a carnivore and does not feed on plant parts. Option D, Lion, is also a carnivore and does not feed on plant parts.

Therefore, the correct answer is option B, Goat.

Predator and Prey Adaptations
Adaptations for Predators:
- They have strong claws that can be withdrawn inside their toes.
- They have eyes in front of their faces.
Adaptations for Prey:
- They have eyes on both sides of their heads.
- They are light brown in color.
- They have strong, flat hind teeth for chewing.
- They move in herds.
Explanation:
Predators are animals that hunt and kill other animals for food, while prey are the animals that are hunted and killed by predators. The adaptations listed above can be categorized as follows:
Predator Adaptations:
- Strong claws: Predators need strong claws to catch and hold onto their prey.
- Eyes in front of their faces: Predators usually have forward-facing eyes, which provide them with binocular vision and depth perception, helping them accurately judge distances and pounce on their prey.
Prey Adaptations:
- Eyes on both sides of their heads: Prey animals have eyes positioned on the sides of their heads, giving them a wider field of vision to detect predators approaching from various directions.
- Light brown color: Prey animals often have light brown or camouflage colors to blend in with their surroundings, making it harder for predators to spot them.
- Strong, flat hind teeth: Prey animals need strong, flat hind teeth for chewing and grinding tough plant material for food.
- Herd behavior: Moving in herds provides safety in numbers for prey animals, as it reduces the chance of an individual being targeted by a predator. It also increases the chances of detecting predators early and allows for coordinated defense mechanisms.
Thus, the given adaptations correspond to prey animals. The correct answer is option C.

A

Explanation:

All animals move in search of food or to protect themselves and their babies from being hunted - True
- Movement in search of food: All animals need food to survive, so they constantly move in search of food sources. This movement helps them find food to sustain themselves.
- Movement for protection: Animals also move to protect themselves and their babies from predators. By moving to safer locations or using camouflage techniques, animals try to avoid being hunted.
- Instinctual behavior: This behavior is often driven by instinct, as animals have natural survival instincts that compel them to seek out food and protect themselves and their offspring.
- Adaptation to environment: This movement is also a way for animals to adapt to their environment and ensure their survival in a competitive ecosystem.
Therefore, the statement that all animals move in search of food or to protect themselves and their babies from being hunted is true. It is a fundamental aspect of animal behavior and essential for their survival in the wild.

Camouflage is a natural adaptation that helps animals blend into their surroundings, making them less visible to predators and thus increasing their chances of survival. Option C is the correct answer.

Rodents, such as rats and squirrels, have sharp front teeth that they use to gnaw on their food. This adaptation helps them eat a variety of foods, including hard items like nuts.

Squirrels are arboreal animals, meaning they mostly live on trees. They have adaptations that help them climb and move through trees.

**Explanation:**

Grasshoppers have various adaptations that help them protect themselves from being eaten by their predators. One of the effective ways a grasshopper protects itself is by camouflaging itself in the grass.

**Camouflage in the Grass:**
- Grasshoppers have evolved to have body colors that blend in with their surroundings, particularly the grass they inhabit.
- Their bodies are usually green or brown, allowing them to camouflage effectively in the grass and vegetation.
- When a grasshopper remains still in the grass, it becomes difficult for predators to spot them due to their similarity in color and texture with the surroundings.
- This adaptation helps grasshoppers avoid being detected by their predators, such as birds, reptiles, and other insect-eating animals.

**Advantages of Camouflage:**
- Camouflage enables grasshoppers to remain hidden from predators, increasing their chances of survival.
- It provides them with a means of defense without having to rely solely on speed or physical traits.
- By blending into the grass, grasshoppers can effectively avoid being detected, giving them more time to find shelter or escape if necessary.
- This adaptation also allows grasshoppers to ambush their prey, as they can remain hidden until the right moment to strike.

**Other Adaptations:**
While camouflage is a significant adaptation for grasshoppers, it is not the only defense mechanism they possess. Grasshoppers also have other adaptations that help protect them:
- Their ability to hop away quickly (option B) allows them to escape from predators that may have spotted them despite their camouflage.
- Some grasshopper species have glands that produce distasteful or toxic substances, making them unappealing or harmful to predators (option A).
- However, the correct answer to the given question is option C because camouflage is the primary defense mechanism used by grasshoppers to protect themselves from being eaten by their predators.

In conclusion, grasshoppers have evolved the ability to camouflage themselves in the grass, which helps them avoid being eaten by predators. This adaptation is crucial for their survival and increases their chances of escaping detection and predation.

Elephants' big ears help them to stay cool by radiating heat away from their body. The large surface area of their ears allows for better heat dissipation.

Purpose of Migration in Animals

Migration is a natural phenomenon observed in many animal species. It is a seasonal movement of animals from one place to another. Let's understand the purpose of migration in animals through the following points:

To Escape from Harsh Weather
- During the winter season, the temperature drops drastically in many regions. This makes it difficult for animals to survive in those areas. Hence, they migrate to warmer regions to escape from the harsh weather conditions. Similarly, during summers, some animals migrate to cooler regions to avoid excessive heat.

To Search Food
- Food availability is another reason for migration. Some animals migrate to places where food is abundant. For example, birds migrate to regions where insects are present in large numbers. Similarly, herbivores migrate to regions where there is plenty of vegetation for grazing.

To Reach their Breeding Grounds
- Many animals migrate to their breeding grounds to mate and lay eggs. For example, sea turtles migrate to the beaches where they were born to lay eggs. Similarly, salmon fish migrate to shallow waters to lay eggs.

Conclusion
Migration is an essential survival strategy for many animals. It helps them to escape from harsh weather conditions, search for food and reach their breeding grounds. By understanding the purpose of migration, we can protect and conserve the species that undertake this journey every year.

Butterflies have a proboscis, a long, thin tube-like mouth, which they use to suck nectar from flowers.

**Explanation:**

The correct answer is option A, the Chameleon.

**Camouflage Phenomena:**
Camouflage is a natural adaptation that allows animals to blend in with their surroundings, making them less visible to predators or prey. This adaptation helps animals to hide and remain unnoticed, increasing their chances of survival.

**Chameleons and Camouflage:**
Chameleons are known for their remarkable ability to change the color of their skin. They have specialized skin cells called chromatophores that contain pigments. By expanding or contracting these cells, chameleons can change the color and pattern of their skin.

**How Chameleons Change Color:**
Chameleons change color for various reasons, including communication, temperature regulation, and camouflage. When a chameleon wants to camouflage itself, it adjusts its color and pattern to match its surroundings.

**Matching Their Surroundings:**
Chameleons have the ability to match the color and pattern of the objects or background they are on. For example, if a chameleon is sitting on a green leaf, it can change its skin color to green and display patterns that mimic the veins and texture of the leaf. This helps the chameleon to blend in and become almost invisible to predators or prey.

**Adapting to Different Environments:**
Chameleons are found in various habitats, including forests, deserts, and grasslands. They can adapt their camouflage to match the specific environment they are in. For instance, a chameleon in a forest may have green skin with brown patches to blend in with the foliage, while a chameleon in a desert may have a sandy color to match the desert landscape.

**Conclusion:**
In conclusion, the camouflage phenomenon is seen in animals like chameleons. Their ability to change color and pattern allows them to blend in with their surroundings, making them less visible and increasing their chances of survival.

Feathers help birds to fly and keep them warm. They provide insulation and are lightweight, allowing for efficient flight.