Test: Reproduction in Animals- 1 - Class 4 MCQ

• The shell of an egg is like a protective coat around the baby bird inside. It is made of calcium carbonate, which is a special kind of material.
• The tiny holes in the shell help air and moisture go inside the egg to help the baby bird grow.
• So, when we crack an egg, we break this hard shell to get to the yummy inside.

• False. The statement is False.

• Explanation: Oviparous animals are the ones that lay eggs to give birth to their young ones, not viviparous animals. Viviparous animals give birth to their young ones directly, not through eggs. For example, mammals like humans, dogs, and cats are viviparous animals because they give birth to live young ones.

• A frog does not lay its eggs on land. Frogs lay their eggs in water. The floating clump of eggs that a frog lays is called frog spawn.
• The eggs hatch into tadpoles, which gradually develop into adult frogs.
• So, the statement that a frog lays its eggs on land is False because frogs lay their eggs in water to begin their life cycle.

The eggs of frogs are called spawn.

Aquatic animals like fish and frogs lay their eggs in water because it provides a safe place for the eggs to develop and hatch. Water helps to protect the eggs and provides the necessary environment for the young ones to grow and survive.

A butterfly has four stages in its life cycle. These stages are eggs, larva (caterpillar), pupa, and butterfly. The butterfly starts as an egg, then hatches into a caterpillar, which forms a pupa and finally emerges as a beautiful butterfly.

Birds like hens and pigeons lay their young in hard-shelled eggs. These eggs hatch after some time, and the adult birds sit on them to keep them warm until they hatch. This process is called incubation.

• Cockroaches do not pass through four stages in their life cycle. They actually pass through three stages.
• When baby cockroaches, called nymphs, hatch from eggs, they look like smaller versions of adult cockroaches.
• As they grow, they shed their skin multiple times in a process called moulting until they eventually become adult cockroaches.
• This means cockroaches have three stages in their life cycle, not four.

Lion is a mammal. Mammals give birth to their young ones and feed them with their milk.

Tadpoles resemble the fish. They respires through gills.

Birds sit on eggs to provide warmth to the egg, so that they can hatch out.

Egg yolk contains food for the embryo.