Tag: the life cycle of animals

Questions Related to the life cycle of animals

Animal which give birth to the young ones are called _______.

biology the life cycle of animals types of reproduction in animals oviparous and viviparous a study on animals

  1. Oviparous

  2. Viviparous

  3. Ovi-viviparous

  4. None of these

Show answer
Correct Option: B
Explanation:

Animals that gives birth to their young ones are called Viviparous.

Give example of viviparous animals.

biology the life cycle of animals types of reproduction in animals oviparous and viviparous a study on animals

  1. Human beings

  2. Frog

  3. Butterfly

  4. All of the above

Show answer
Correct Option: A
Explanation:

In the viviparous type of animals, females can give birth to young ones. Mammals (except egg-laying mammals), like whale, shark, mouse, humans are examples of viviparous animals. Frog is an oviparous animal. The butterfly is an oviparous animal

So, the correct answer is Human being.

The correct option is A.

The animals in which complete embryo develops in the mother's body through placenta are 

biology the life cycle of animals types of reproduction in animals oviparous and viviparous a study on animals

  1. Oviparous

  2. Viviparous

  3. Ovo-viviparous

  4. Herbivorous

Show answer
Correct Option: B
Explanation:

  • Oviparous animals are the animals that lay eggs.
  • Viviparous animals give birth to the living offspring that develop within the mother's body (as in the case of most of the mammals).
  • Ovo-viviparous give birth to the young ones in eggs which are hatched within the female body (as in some reptiles and fishes).
  • Herbivorous animals are those that feed exclusively on vegetable food.
So, the correct answer is option B.

Foetus developing in the genital track without getting nourishment from the mother is a case of

biology the life cycle of animals types of reproduction in animals oviparous and viviparous a study on animals

  1. Vivipary

  2. Ovipary

  3. Ovo-vivipary

  4. None of the above

Show answer
Correct Option: C
Explanation:

Ovipary is the development of foetus outside the mother's womb. Example, egg-laying birds.

Vivipary is the development of foetus inside the mother's womb along with nourishment from the mother with the help of placenta. Example, humans.
Ovo-vivipary is the development of foetus inside the mother's womb but without nourishment from the mother with the placenta. Example, certain sharks and fishes.

Hens and frogs both are

biology the life cycle of animals types of reproduction in animals oviparous and viviparous a study on animals

  1. Oviparous

  2. Viviparous

  3. Ovoviviparous

  4. None of these

Show answer
Correct Option: A
Explanation:

Oviparous animals are animals that lay eggs, with little or no other embryonic development within the mother. Hen and frogs, they both lay eggs and hence are oviparous.
On the other hand, viviparous are those that give birth to live young ones and in ovoviviparous, there is internal fertilization and young are born live but there is no placental connection and young ones are nourished by yolk egg.
So, the correct answer is option A.

Animals giving birth to young ones are

biology the life cycle of animals types of reproduction in animals oviparous and viviparous a study on animals

  1. Viviparpous

  2. Oviparous

  3. Triploblastic

  4. Coelomate

Show answer
Correct Option: A
Explanation:

Viviparous animals are those animals which give birth to young ones. Birth of fully developed young ones is attributed to the presence of a highly developed placenta which helps the embryo to develop fully in mother's womb. 
So, the correct option is 'Viviparous'.

In markets, eggs of birds are available but never eggs of dogs, because

biology the life cycle of animals types of reproduction in animals oviparous and viviparous a study on animals

  1. Birds lays eggs but dogs do not

  2. Bird's eggs are large but dog's eggs is very small

  3. Bird's eggs are covered but dog's eggs are not

  4. None of these

Show answer
Correct Option: A
Explanation:

  • Birds are oviparous meaning they lay eggs. On the other hand, dogs do not lay eggs and are viviparous meaning dogs give birth to live young ones. So, bird's eggs are available in markets. 

So, the correct answer is option A.

The eggs of fish are covered by

biology the life cycle of animals types of reproduction in animals oviparous and viviparous a study on animals

  1. Jelly like membrane

  2. Hard shell

  3. Both A and B

  4. None of these

Show answer
Correct Option: A
Explanation:

The egg of fish is surrounded by a jelly-like membrane but does not develop a hard shell. Some fishes lay an egg that is covered by a hard leathery coat.

So, the correct answer is option A.

The eggs of frogs do not have shells for protection, yet they are safe in water. How?

biology the life cycle of animals types of reproduction in animals oviparous and viviparous a study on animals

  1. They are covered and embedded in a jelly like strip

  2. They are covered with bark

  3. They are covered with yolk

  4. Both A and B

Show answer
Correct Option: A
Explanation:

  • The female frog covers the eggs with a jelly-like substance that causes the eggs to float to the water's surface and also protects from any damage.

So, the correct answer is option A.

Offsprings of oviparous animals are at greater risk of survival as compared to those of viviparous animals because

biology the life cycle of animals types of reproduction in animals oviparous and viviparous a study on animals

  1. Proper embryonic care and protection is absent

  2. Embryo does not develop completely

  3. Progenies are of smaller size

  4. Genetic variations do not occur

Show answer
Correct Option: A
Explanation:
In oviparous animals such as reptiles and birds, fertilised eggs are covered by hard calcareous shell and are laid in a safe place. After incubation period, young ones hatch out. In viviparous animals such as majority of mammals including human beings, the zygote develops into a young one inside the body of the female individual. After a certain growth, young ones are delivered by the female individual. Due to proper care and protection, the chances of survival of young ones are more in viviparous individuals.
So, the correct answer is 'Proper embryonic care and protection is absent'.