Animal Kingdom MCQ Quiz - Objective Question with Answer for Animal Kingdom - Download Free PDF

The Correct Answer is: internal ears and no hair on their bodies  

Concept:

• Animals can reproduce by
  • either giving birth to new babies or
  • laying eggs from which new babies hatch
• Those that give birth to new babies are called viviparous.
• Those that lay eggs are called oviparous.

Important Points 

• Viviparous animals:
  • These animals reproduce by giving birth to younger ones.
  • They have external ears and hairs on their skin.
  • They can regulate their body temperature.
  • They are mostly mammals.
  • Example: elephants, lions, humans.
• Oviparous animals:
  • These animals reproduce by laying eggs from which new babies hatch
  • They do not have external ears and hairs on their skin.
  • They cannot regulate their body temperature.
  • Example: chicken, duck, insects, crocodiles.

​Explanation:

• Animals that lay eggs do not have external ears.
• Crocodiles have tiny holes on top of their head that act as ears.
• Ears of animals serve the following functions:
  • Helps in hearing
  • Maintaining static and dynamic balance
  • In birds, to maintain balance during flight
  • The ears of elephants help to cool their body.
• Animals that give birth to younger ones have hairs on their body.
• The different patterns on the animals are due to the hair on their skin.

​Thus, animals that lay eggs have internal ears and hairless bodies. 

The correct answer is - Both A and B are correct and B explains A

Key Points

• Statement A: During the cold season, lizards go into a long and deep sleep.
  • This refers to a biological phenomenon called hibernation, a state in which certain animals, including lizards, significantly reduce their metabolic activity during unfavorable seasons like winter.
  • Cold-blooded animals like lizards are particularly dependent on external temperatures to regulate their body functions, making hibernation essential for survival during colder months.
• Statement B: Some animals go into a long, deep sleep in certain seasons.
  • This statement is a general description of hibernation or its counterpart, aestivation (sleep during hot and dry seasons).
  • It broadly applies to various species, including mammals, reptiles, and amphibians, who enter such states during extreme environmental conditions.
• Explanation: Statement B explains Statement A because it provides a general understanding of hibernation, which is specifically mentioned in Statement A as a survival mechanism for lizards during cold seasons.

Additional Information

• Hibernation
  • Hibernation is a state of prolonged inactivity and reduced metabolism that helps animals conserve energy during periods of food scarcity or extreme cold.
  • Animals like bears, bats, and hedgehogs are known for hibernating during winter.
  • Reptiles and amphibians, such as lizards and frogs, also hibernate but their mechanisms differ from those of mammals.
• Aestivation
  • Aestivation is similar to hibernation but occurs during hot and dry seasons to prevent dehydration and overheating.
  • Examples include snails, frogs, and certain lungfish species that aestivate to survive harsh summer conditions.
• Cold-blooded vs Warm-blooded Animals
  • Cold-blooded animals (ectotherms) rely on external environmental conditions to regulate their body temperature, making hibernation or aestivation essential for survival during extreme temperatures.
  • Warm-blooded animals (endotherms) can regulate their body temperature internally but may still hibernate to conserve energy during food scarcity.

The correct answer is - Both Assertion and Reason are true and Reason is the correct explanation of Assertion

Key Points

• Assertion
  • The statement "An elephant herd has only female and baby elephants" is true.
  • Elephant herds are primarily composed of females (mothers and daughters) and their offspring. Adult males do not typically remain in the herd.
• Reason
  • The statement "Male elephants leave their herd after 14-15 years and move around alone" is true.
  • Male elephants leave the herd during adolescence (approximately 14-15 years) and live solitary lives or form temporary groups with other males.
  • This behavior is a natural part of their social structure and helps reduce competition for mates within the herd.
• The Reason correctly explains the Assertion, as the absence of male elephants in the herd is due to their tendency to leave and live independently after reaching maturity.

Additional Information

• Elephant Social Structure
  • Elephants are known for their matriarchal social structure, where a senior female, called the matriarch, leads the herd.
  • The herd consists of mothers, daughters, sisters, and their young calves, forming a tightly-knit group.
• Male Elephant Behavior
  • Male elephants, known as bulls, leave the herd upon reaching adolescence (14-15 years).
  • They typically lead solitary lives or join temporary male groups called "bachelor herds."
  • This behavior is essential for preventing conflict within the herd and maintaining genetic diversity during mating.
• Ecological Importance of Elephant Herds
  • Elephant herds play a vital role in maintaining the ecosystem, such as dispersing seeds and shaping landscapes.
  • Understanding their social structure helps in the conservation efforts for these magnificent animals.

The correct answer is - Sun-bird and Tailor bird

Key Points

• Sun-bird
  • The Sun-bird is known for constructing hanging nests from tree branches or bushes.
  • These nests are often oval-shaped, intricately woven, and suspended to protect the eggs from predators.
• Tailor bird
  • The Tailor bird creates its nest by stitching leaves together using plant fibers or spider silk.
  • Its nest is also hanging and cleverly camouflaged in bushes or trees.
  • This unique nesting technique highlights the bird's exceptional skill and adaptability.
• These two birds are commonly found in India and are examples of species that build hanging nests.

Additional Information

• Weaver bird
  • Weaver birds are also known for constructing hanging nests, but their nests are typically larger and more complex compared to those of Sun-birds or Tailor birds.
  • Their nests are often seen on tall trees and are woven with grass, twigs, and other plant materials.
• Indian Robin
  • Unlike the birds mentioned above, the Indian Robin does not build hanging nests. It prefers to nest in crevices, holes, or sheltered spots near the ground.
• Nesting Behavior
  • Birds like Sun-birds and Tailor birds adapt their nesting techniques to ensure safety from predators and environmental factors.
  • Hanging nests provide additional security, making it harder for ground-based predators to access their eggs or chicks.

The correct answer is - Snipping grass and chewing grass respectively

Key Points

• Cows have specialized teeth for their herbivorous diet
  • The short front teeth (incisors) are designed for snipping grass.
  • The large and flat side teeth (molars) are adapted for chewing and grinding the grass into smaller particles for digestion.
• Snipping and chewing are distinct functions
  • Snipping refers to cutting off grass close to the ground, which is efficiently done by the incisors.
  • Chewing involves breaking down the grass fibers, a function performed by the molars.
• Adaptation for cellulose digestion
  • Cows rely on fibrous plant material as their primary food source, which requires effective chewing to aid microbial digestion in their rumen.

Additional Information

• Cows are ruminants
  • Ruminants like cows have a specialized digestive system with a multi-chambered stomach, including the rumen, which helps break down tough plant material.
  • The molars play a critical role in mechanical digestion, ensuring grass is properly ground before fermentation in the rumen.
• Difference from carnivores
  • Unlike carnivores, cows lack sharp canines and rely on flat molars for grinding plant material.
  • This adaptation reflects their herbivorous feeding habits.
• Importance of chewing (rumination)
  • Cows chew their food twice – first while eating and later during rumination, where previously swallowed food is regurgitated for further chewing.
  • This process helps maximize the breakdown of cellulose, aiding in nutrient absorption.

The Correct Answer is: For hibernationKey Points

• Hibernation is defined as the dormancy period of the cold-blooded animals in winters.
• The cold-blooded animals such as Lizards, frogs tend to go under a dormancy period in winters in order to survive the cold temperature.
• Aestivation is defined as the slowing down of activity during the summer by some animals in order to cope with high temperatures.
• Regeneration is defined as the growth of new tissue from a destroyed one.
• The alteration in the genetic material tends to change the characteristics of an organism is called Mutation.

Additional Information 

• Hibernation is defined as a state of reduced metabolic activity during winter season among some animals.
• Many organisms are hibernators such as Fishes, Amphibians and Reptiles.
• Snakes, Frogs and Lizards hibernate in cold weather because they are cold-blooded animals.
• The Hibernators relies on a combination of reserve body fat, stored food supplies etc.
• Some animals become dormant in the summer season which is called Aestivation.

The incorrect option is  Male bees are very important for the hives. Key Points

• Every honey bee colony comprises a single queen, a few hundred drones and several thousand worker castes of honey bees.
• A queen bee is the only female bee in the hive that gets to reproduce.
• Worker bees are all female and are all offspring of the queen. 
• Queen is a fertile, functional female, the worker is a sterile female and the drone is a male insect.
• Queen and worker develop from the fertilized egg while drone develops from an unfertilized egg.
• Further differentiation of queen and worker depends on the quality and quantity of food that is fed to the queen or worker larvae.

Explanation:

Male bees are very important for the hives → Incorrect (Worker bees are important because they feed other bees)

Most of the bees in the hive are worker bees → Correct.

There are only a few males in the hive → Correct.

Every beehive has one queen bee that lays eggs → Correct.

​Additional Information

The queen:

• ​There is only one queen in a colony and considerably larger than the members of other castes.
• Swarming is the natural method that honeybee colonies use for multiplying their colonies.
• The old queen is killed as soon as the new queen is fertilized.
• The phenomenon of raising a queen in the off-season is called supersedure.
• The normal lifespan of a queen is 3 years.

​The drone:

• ​The drones are male bees with no sting.
• They are much larger and stouter than either the queen or the workers.
• Their only function is to impregnate the young queen a task which they are unable to perform until they are about 10 days of age.
• They also help in the maintenance of hive temperature. 
• The drones are produced by unfertilized eggs of the queen, or by those workers which take up the reproductive function due to the absence of a queen in a colony.
• The normal lifespan of a drone is 57 days. 

​The worker:

• ​Smallest inhabitants of the beehive.
• They are imperfect females incapable of laying eggs.
• Worker bees primary duties are cleaning, feeding developing larva once hypopharyngeal glands develop, ripening of honey, secreting/moulding of wax into combs.
• The lifespan of a worker is about 4 weeks during the active season and 8 to 10 weeks during the less active season.
• On certain occasions when the colony is in need of a queen, some of the workers start laying eggs from which only drones are produced.
• These workers called laying workers.

The Correct Answer is: October to December

Concept:

• The honeybee is a flying insect native to the Asian subcontinent.
• These are known for the sweet honey they produce.
• Honeybees collect nectar from flowers.
• This nectar is converted to honey in their hives.
• Honey can be collected from these beehives.

 Key Points

• Honeybees lay their eggs from October to December.
• It is the best time to start bee-keeping.
• Honeybees are attracted to the Lichi flowers.
• In artificial culture, sugar is given to make the syrup (nectar) for honeybees.
• Medicines are used to clean the beehives.
• Boxes are needed for keeping bees and storing honey produced by them.

Thus, the best period to start bee-keeping is October to December.

Additional Information 

• The scientific name of honeybee: Apis Indica.
• The practice of rearing honeybee to obtain honey is known as Apiculture.

The correct answer is Option 3, i.e Dolphins.

Key Points

• Dolphins are the most intelligent mammals on earth. 
• Studies show that they are capable of complex problem solving and have the ability to learn as an individual.
• They can also pass the knowledge on to others.
• Dolphins have highly-developed brains. Research shows that dolphins mirror self-recognition, cultural learning, comprehension of symbol-based communication systems, and an understanding of abstract concepts — comparable to chimpanzees and other great apes.
• Dolphins use echolocation for hunting. They emit "clicks" which work on the principle of echo.
• Dolphins analyze the echo from the reflected objects as quickly as they keep on swimming.
• Their echolocation can even help them know the kind and size of the objects.

The Correct Answer is: A and B only

Key PointsThe following are the key points related to the elephant:

• Oldest female elephant becomes the head of the herd.

• There are 10 to 12 female elephants and young ones in a herd.

• There is no male elephant in the herd, they left when they turn 14 or 15.

• An adult elephant can eat up to 100kgs of leaves and things in one day.

• Elephant's big ears also work like fans, they flap these to keep themselves cool.
• An adult elephant can eat up to 100kg of leaves. 

Elephants Herd:

(A) Elephants live together in groups called herds. - True

(B) An elephant herd has only females and baby elephants. - True

(C) A herd may have any number of female elephants with their young ones. - False (They have a fixed of 10 -12 elephants )

(D) Male elephants live in the herd till they are 4-5 years old, then they leave their herd and join the herds of male elephants. - False (There is no male herd group)

Hence only A and B are correct.

The Correct Answer is: Hooked beak 

Concept:

• Different types of birds have different beaks.
• Beaks help to decide what type of food will a bird eat.

 Key Points

Cone Shaped Beak:

• It is a short and robust beak
• The end is in a conical shape.
• Allowing them to break open seeds.
• Sparrows have such beaks.

​Straight & thin beak:

• It helps in eating insects.
• Helps to find and eat bugs from wood.
• Woodpeckers have such beaks

Hooked beak 

• It helps to tear and break flesh.
• Raptors have such kind of beak.
• Eagles have such a type of beak.

Long, thin needle-like beak :

• Nectar feeders have such beaks.
• Hummingbirds have such beaks.

Thus, the Hooked beak is used to tear and eat meat.

The Correct Answer is: Little Stint

Concept:

Migration :

• The organism can "move away temporarily from the stressful habitat to a more hospitable area and return when the stressful period is over". Or in other words 
•  "The phenomenon of movement of a species from its own habitat to some other habitat for a particular time period every year for a specific purpose like -   feeding & breeding."
• Every winter the famous Keoladeo National Park (Bharatpur) in Rajasthan hosts thousands of migratory birds coming from Siberia and other extremely cold northern regions.

 Key Points

• The smallest migratory bird - Little Stint Weighing as low as 15 grams, from the Arctic region travel over 8000 km to reach India.

Migration is common among birds.

• Birds migrate in search of - food, shelter, and reproduction.
• Examples of Migratory Bird include - Flamingos, Cuckoo, Black-crowned Night Heron, Asian Koel.

Additional Information

• Some birds such as - Pintail Duck, Curlews, Flamingo, Osprey, and Little Stint migrate to our country in the winter season every year. 

• The Arctic tern has the longest migration journey of any bird, it flies from its Arctic breeding grounds to the Antarctic and back again each year, a distance of at least 19,000 km (12,000 mi), giving it two summers every year.

The Correct Answer is: C, D and A

Key Points

About Elephant and its herd:

• The elephant is the largest existing mammal on the Earth

• The herd follows matriarchy, i.e. the oldest female elephant becomes the head of the herd.

• There are 10 to 12 female elephants and young ones in a herd.
• It mainly consists of females and baby elephants.

• There is no male elephant in the herd, they leave when they turn 14 or 15.
• The herd sometimes is joined by the (bull) elephants depending on the climate and terrain.

• An adult elephant can eat up to 100kgs (1 quintal) of leaves and twigs in one day.

• A three-month-old elephant weighs about 200 kgs (2 quintals).
• Elephants do not rest much and sleep for only 2-3 hours per day.
• Elephants are usually found in tropical habitats.
• Elephants love to play with mud and water. The mud keeps their skin cool.
• Their big ears also work like fans. The elephants flap these to keep themselves cool.
• Family is what forms the basis of the formation of elephants but it can consist of more than one family.

Thus, 

A. Elephants do not rest very much, they sleep 2 to 4 hours only in a day: True

B. An adult elephant can eat more than 200 kg of leaves and twigs in a day: False

C. They love to play with mud and water, the mud keeps their skin cool: True

D. In the elephant herd, the oldest female elephant decides everything: True

The Correct Answer is: Tiger

 Key PointsTiger: 

• ​A tiger can see six times better at night than most of us. 
• The tiger’s whiskers are very sensitive and can sense the movements or vibrations in the air.
• A tiger’s sense of hearing is so sharp that it can make out the difference between the rustling of leaves and the sound of an animal moving on the grass.
• The ears of the tiger can move in different directions and this helps to catch the sounds from all around. 
• Tigers make different sounds for different purposes like when it is angry or to call out to a tigress. It can also roar or snarl. 
• Tigers mark their area with their urine.
• A tiger can at once come to know if there is another tiger in its area by the smell of the urine. 
• In India, the numbers of tigers were on a decline for a few years in the past.
• The government started the project Tiger to restore their numbers and habitat.
• They are found in specially dedicated areas like Keoladeo Ghana National Park (in Rajasthan) and Jim Corbett National Park (in Uttrakhand) among others.

The animal, which can move its ears in different directions which helps him to catch sounds from all directions, is tiger

The Correct Answer is: Owl

Concept:

Monocular vision:​

• Birds with eyes on the sides of their heads have a wide visual field.
• It is useful for detecting prey.
• Such birds can focus on two different things at a time.
• When its eyes focus on two different things, it increases its range of vision.
• They don't have to move their heads to see around.
• They can see four times as far as we can.
• Example: Kites, Eagles, Vultures.

​​Binocular vision

• While those with eyes on the front of their heads have binocular vision.
• Such birds can estimate distances when hunting.
• When a bird focuses both eyes on an object, it can estimate the distance.
• They have to move their heads to see around. 
• The binocular vision of birds makes them see distinctly.
• Example: Owl, Crows, Doves, Peacock, Nightingales, Parrots, Pigeons, etc.

 Key Points

Owl:

• An owl is a nocturnal bird, which means it sleeps during the day and is awake at night. 
• They have eyes on the front of their head.
• Owls are carnivores. 
• They eat rodents, small and medium-sized mammals, insects, fish, and other birds.
• Owls can rotate their neck back up to 270 degrees.

​Thus, an owl has eyes in front of its head like humans.​