Question

Симетрії тіла ластівки​

Answer 1

Ответ:

Верхня сторона ультрамариново-синя, черевце біле або рудувате, надхвістя темно-синє або рудувате, хвіст у дорослих птахів з довгим і тонким крайнім кермовим пір'ям — «косами». Лоб і шия червоно-коричневі, у поперек горла чорна смуга — «нашийник»; решта пір'я низу біле, з кремовим відтінком; махові пера чорні, з полиском; хвіст чорний, вилоподібний, стернові пера з білими плямами, дзьоб і ноги чорні[2].

Answer 2

Symmetry of a Bird's Body

The body of a bird exhibits several interesting symmetries, both in its external appearance and internal structure.

External Symmetry: The external symmetry of a bird's body refers to its overall shape and structure. Birds typically exhibit bilateral symmetry, meaning that the left and right sides of their bodies are mirror images of each other. This symmetry is most evident when observing a bird from the outside. Internal Symmetry: Internally, a bird's body also demonstrates remarkable symmetrical features. For example, the arrangement of internal organs often follows a symmetrical pattern. The heart, lungs, and other vital organs are typically positioned in a way that reflects bilateral symmetry. This internal symmetry is essential for the proper functioning of the bird's physiological processes. Evolutionary Significance: The symmetrical design of a bird's body is believed to have evolutionary significance. It is thought to be an adaptation that enhances the bird's ability to efficiently navigate its environment, maintain balance during flight, and perform complex aerial maneuvers. Additionally, symmetrical body structures may also play a role in mate selection and signaling fitness to potential mates. In summary, the symmetry of a bird's body, both externally and internally, plays a crucial role in its overall form and function, contributing to its remarkable agility and adaptability in various environments.