Question

Name the ways in which the egg protects an embryo?

Answer 1

Step-by-step explanation:

The egg protects an embryo in several ways:

Shell: The hard outer shell of the egg protects the embryo from physical damage and predators.

Membranes: The egg has two membranes that protect the embryo. The outer membrane surrounds the yolk and the inner membrane surrounds the embryo itself. These membranes prevent the entry of harmful bacteria and viruses while allowing oxygen to pass through.

Amniotic fluid: The embryo is surrounded by amniotic fluid which cushions it against shocks and jolts and also helps maintain a constant temperature.

Nutrients: The yolk contains all the nutrients the embryo needs for development, so the embryo is protected from starvation.

Waste disposal: The allantois, a sac-like structure that grows from the embryo, helps to dispose of waste products.

Answer 2

The egg provides several protective features that are essential for the survival and development of the embryo:

Shell: The hard outer shell of the egg provides physical protection to the embryo from external damage, such as pressure or impact. It also helps to prevent water loss and serves as a barrier against harmful bacteria.

Membranes: The egg is surrounded by two protective membranes – the inner and outer membranes – which provide an additional layer of physical protection and help to regulate the exchange of gases and moisture.

Albumen: The egg white or albumen is a protein-rich substance that cushions and protects the embryo from mechanical shock. It also provides a source of nutrients and water for the developing embryo.

Yolk: The yolk is the primary source of nutrients for the developing embryo, providing essential proteins, fats, and minerals. It is surrounded by the vitelline membrane, which protects it from damage and helps to regulate nutrient uptake.

Overall, the egg provides a complete and self-contained environment for the developing embryo, providing all the necessary nutrients, moisture, and protection needed for its growth and development.