Also known as the pneumotaxic center, this area allows for smooth transitions between inspiration and expiration by limiting the time of inspiration. A. Dorsal respiratory group.
B. Ventral respiratory group.
C. Pontine rispiratory center.
D. Carotid body.

Option A.

Dorsal respiratory group.

Explanation:

Pneumotaxic center is located in the upper part of pons varolli. Pneumatic center help to regulate neuronal activity by inhibiting or limiting the dorsal respiratory group. It sets duration of of inspiration for every respiratory cycle by allowing transitions between inspiration and expiration and limiting the time of inspiration. The maximum inspiration time it can enforce is 40 inspirations per minutes.

Pneumatic center limit dorsal respiratory group .

dorsal respiratory group act as pacemaker of respiratory movements and pneumatic centre limits it.

albert einstein retrieved guacamole from the galapagos islands in africa

succession returns a disturbed

ecosystem to a more stable state. this is also classified into two (2) types:

primary succession and secondary succession. the primary succession arises when

a new land is transformed and a bare rock has been exposed providing an environment

that can be occupied for the first time. while, secondary succession occurs

when a previously occupied environment was disturbed that kills much of all its

community

explanation: