Answer:
The answer to this question is given below in this explanation section.
Explanation:
"advantages of interconnecting air sacs for birds"
The air sacs permit a unidirectional flow of air through the lungs.Unidirectional flow means that air moving through birds lungs is largely fresh air and has a higher oxygen content.In contrast air flow is bidirectional in mammals moving back and forth into and out of the lungs.As a result air coming into a mammals lung is mixed with old air has less oxygen. so in bird lungs,more oxygen is available to diffuse into the blood(avian respiratory system).
- The air sacs are thin membrane structures connected to the primary or secondary bronchi via ostia and they comprise most of the volume of the respiratory system.
- Air sacs are poorly vascularized by the systemic circulation and do not directly participate in significant gas exchange but act as a bellows to ventilate the lungs.In most species,there are nine air sacs which can be considered in cranial and caudal functional groups.
- The cranial group consists of the paired cervical air sacs,the unpaired clavicular air sacs and the paired cranial thoracic air sacs.
No. Not all subatomic particles participate in chemical reactions.
The subatomic particles are proton, neutron, and electron.
neutron - subatomic particle with NO electrical charge. It is found in the nucleus of an atom.
proton - subatomic particle with 1 positive electrical charge. It is found in the
nucleus of an atom.
electron - subatomic particle with 1 negative electrical charge. One or more electrons move around the nucleus of an atom.
Among the three subatomic particles, electron is directly involved in the chemical reaction between two atoms.
The correct answer is A.
Secondary growth in plants allows many woody and non woody plants to grow tall and strong. The growth basically occurs in the roots and the stems and it is controlled by lateral meristem. Examples of non woody plants that undergo secondary growth include: carrot, potato, tuber, etc.<span />
Answer:
It disappears, there will be no more magnetic field when the eclectic current stops.
