Biology Chapter on Fertilisation and Development

What is formed when an egg and sperm combine during fertilisation?

All eggs laid by female animals are fertilised and develop into new individuals.

What is the term for the developing structure after the zygote that forms different tissues and organs?

The _____ gets embedded in the wall of the uterus for further development.

Match the following terms with their descriptions:

What is the main purpose of IVF (in vitro fertilisation)?

Test-tube babies are actually grown and developed in test tubes.

What is the term used for fertilisation that occurs outside the body?

Fertilisation occurs in water for many aquatic animals, which is termed __________.

Match the following types of fertilisation with their characteristics:

Why do fish and frogs lay eggs in large numbers compared to hens?

Sperms swim towards the eggs in an aquatic environment during the fertilisation process.

What are babies born through in vitro fertilisation commonly called?

What is the process called when a larva transforms into an adult through drastic changes?

Human beings undergo metamorphosis.

What is the term used for the stage when the embryo's body parts such as hands, legs, and head are completely formed?

What are the three distinct stages in the life cycle of a frog?

The development of the embryo occurs entirely inside the female body for all animals.

What happens after the embryo develops in oviparous animals?

Hydra reproduces through a method called __________.

Match the following organisms with their type of reproduction:

Viviparous animals give birth to __________ young ones.

What is the initial cell formed upon fertilization called?

Which stage in the frog's life cycle is primarily aquatic?

Buds in hydra are formed through sexual reproduction.

Match the following types of animals with their reproductive methods:

In which part of the female reproductive system does the embryo get embedded?

What are the bulges that develop in hydra called?

Embryos of viviparous animals continue to grow within an egg shell after fertilization.

What is the process called when a hydra reproduces by forming new individuals from buds?

Amoeba reproduces through a process known as binary fission.

Who successfully cloned the first mammal named Dolly?

The type of asexual reproduction in amoeba involves dividing into two and is called __________.

From what type of sheep was the cell collected to clone Dolly?

Dolly the sheep was cloned from a cell taken from a male Finn Dorsett sheep.

What happens to the nucleus of the egg during Dolly's cloning process?

Which of the following statements is true about fertilisation in animals?

Binary fission is a method of asexual reproduction.

What is metamorphosis?

The embryo gets embedded in the __________.

Match the following reproduction methods with their examples:

Which of the following is a characteristic of a zygote?

Define asexual reproduction.

Hydra reproduces by external fertilisation.