What are the two main modes of reproduction in animals?
Answer: Sexual, Asexual
Animals reproduce through two primary modes: sexual reproduction, which involves the fusion of male and female gametes, and asexual reproduction, which requires only one parent.
Which type of reproduction involves the fusion of male and female gametes?
Answer: Sexual
Sexual reproduction is the process where a male and a female gamete fuse to form a zygote, which then develops into a new individual.
Which type of reproduction requires only one parent?
Answer: Asexual
Asexual reproduction involves only one parent and produces offspring identical to the parent. Examples include budding in Hydra and binary fission in Amoeba.
What is the term for the fusion of sperm and egg?
Answer: Fertilisation
Fertilisation is the process where the male sperm and female egg fuse to form a zygote, which later develops into an embryo.
What type of fertilisation occurs inside the female body?
Answer: Internal
In internal fertilisation, the sperm fertilises the egg inside the female’s body. This occurs in animals like humans, cows, and dogs.
What type of fertilisation occurs outside the female body, often in water?
Answer: External
In external fertilisation, eggs are fertilised outside the female body, commonly seen in frogs, fish, and amphibians.
What do we call animals that give birth to live young ones?
Answer: Viviparous
Viviparous animals, like humans, dogs, and cows, give birth to live young instead of laying eggs.
What do we call animals that lay eggs?
Answer: Oviparous
Oviparous animals, such as hens, frogs, and lizards, lay eggs, which later hatch into young ones.
Which process transforms a larva into an adult through drastic changes?
Answer: Metamorphosis
Metamorphosis is the transformation process seen in frogs and butterflies, where they undergo drastic changes from larval to adult forms.
What type of asexual reproduction occurs when a single organism splits into two identical individuals?
Answer: Binary Fission
Binary fission is a type of asexual reproduction in which a single organism, such as Amoeba, divides into two identical daughter cells.
