The Life of Birds: Bird Life Cycles

The video explores bird activities related to reproduction, such as singing and nesting. It explains how birds reproduce through internal fertilization and lay amniotic eggs, which are incubated to develop embryos. The video also covers the role of parents in feeding and caring for young birds, highlighting the rapid growth and independence of some species, while others remain dependent for longer periods.

What is the primary purpose of birds' activities like singing and nest building?

• To attract predators

• To produce offspring

• To find food

• To mark territory

Why do birds lay eggs at an early stage of development?

• To ensure a larger number of eggs

• To avoid carrying heavy eggs during flight

• To protect eggs from predators

• To increase the size of the eggs

What materials in bird eggs provide nourishment to the developing embryo?

• Water and glucose

• Albumin and yolk

• Calcium and iron

• Protein and fiber

How do birds ensure the proper development of their eggs?

• By sitting on them to keep them warm

• By burying them underground

• By exposing them to sunlight

• By keeping them in water

What is a significant activity of parent birds during the early stages of their chicks' development?

• Teaching them to fly

• Singing to them

• Gathering food for them

• Building new nests