CBSE Questions for Class 8 Biology Reproduction In Animals Quiz 2 - MCQExams.com

• Sexual reproduction causes greater genetic diversity because the sperm and egg with a different set of genes fuse to form new individuals and further mix the genes to produce more genetic diversity. 
• Asexual reproduction is the process where one organism divides into two without shuffling its genes, so the new individual has the same version of genes as the parent. 
• Vegetative propagation is also a type of asexual reproduction in higher plants, especially angiosperms. It is the process of formation of new plants from the detached vegetative parts of the parent plant that mean the new plants have genetic material inherited from a single parent.

• Oviparous animals lay eggs and the offspring development takes place outside the animal's body. (Example: Birds).
• Viviparous animals are those that give birth to young ones. (Example: Human beings).
• Sterile organisms are those which are not able to reproduce. (Example: Mule).
• Hermaphrodite is an organism that has reproductive organs of both sexes. (Example: Earthworm).

• Reproduction is the biological process of the production of new individual organisms or 'offspring' from their parents. It is essential for an organism to reproduce to maintain the continuity of the species  

• Oviparous are the animals that lay eggs and embryonic development majorly takes place outside the body of the mother. For e.g. - pigeon and crocodile etc.
• Viviparous are the animals that give birth to live young ones that have developed inside the body of the female parent, for e.g. - rats and horses etc.
• In option A, humans and cows are viviparous while snakes and pigeons are oviparous.
• In option B, crocodile is oviparous.
• In option C, cockroaches are oviparous.

• Oviparous organisms produce their offspring by laying eggs. 
• While viviparous organisms produce offspring by giving birth to young ones. They do not lay eggs.

• Vagina, ovary, and uterus are parts of the female reproductive system. 
• They help in assisting various activities like pregnancy, childbirth associated with reproduction.
• The egg cell is a female gamete which after fusion with a male gamete (sperm) forms a zygote.

• Hydra is a multicellular eukaryotic organism, which reproduces by the process called budding, In this process, a bud is formed on the body of the organism, which will develop and get separated into a new organism.
• Amoeba is a unicellular organism. It multiplies by the process called binary fission. In binary fission, the organism is divided into two and each part will develop into a new organism.

• Animals that lay eggs to produce their offspring are known as oviparous animals.
• Birds, reptiles and amphibians are examples of oviparous animals.
• Mammals (including human beings) are an example of viviparous animals as they produce offspring by the development of embryos inside their body, eventually leading to live birth.

• The bulges in Hydra are known as buds and the process of formation of a new individual from these buds is called budding.
• Pupa is the life stage in the development of insects exhibiting complete metamorphosis that occurs between the larval and adult stages
  

$$\textbf{Correct answer: C}$$ 

$$\textbf{Option (C):}$$ 

$$\bullet$$ Dolly is a famous animal because it is the first mammal that was produced by cloning. 

$$\bullet$$ Dolly was a female domestic sheep that was produced from a somatic cell and not from gametes. 

$$\bullet$$ It was done by transferring the nucleus from the udder cell of a sheep to the egg cell, whose nucleus was removed.

Hence, the correct answer is option (C).

Crow, frog, lizard are oviparous animals whereas cat, dog and cow are viviparous animals.

So the correct option is Crow, Cat.

The correct option is A.

Females in viviparous animals give birth to young ones. Mammals, like whales, sharks, mice, humans are examples of viviparous animals. Frog and butterfly are oviparous animals.

So, the correct answer is Human being.

The correct option is A.