Answer:
C) They are compressed during inhalation.
Explanation:
Birds breathe through rigid lungs that are located in the animal's thoracic region. The trachea of birds divides into bronchi that branch inside the lungs into very thin tubes called parabronchials or parabroncholes, which are irrigated by blood capillaries that allow gas exchange.
In birds there are no pulmonary alveoli (as in mammals), but air capillaries that depart from the parabroncholes. Oxygen gas passes from these capillaries to the blood capillaries, thus causing gas exchange.
In the lower portion of the bird's trachea, before branching the bronchi, we can find the syringe, a bag-like structure that has vocal cords responsible for the birds' scream and song. Most of the time, the sound emitted by birds serves to attract the mate, mark territory and prevent birds of the same species against some predator or other danger.
Answer:
2/3 of the students in a class are girls. if there are 20 boys in the class. then the totoal number of girls isthe length of abhishek's notebook is 17cm and 8 mm. What will be its length in cma fraction has no2/3 of the students in a class are girls. if there are 20 boys in the class. then the totoal number of girls isthe length of abhishek's notebook is 17cm and 8 mm. What will be its length in cm
Answer:
It is located in the sun's green zone where habitability was and still is possible, this allowed the earth to develop various types of life. With varying climates this supported adaptations which later morphed the flora and fauna of our home planet.
A Moraine is formed when a glacier slides through a valley.
Answer:
one is adopted and one is the child from the mother's previous marriage.
Explanation:
