Air sacs are found only inn

Air sacs are found in:

Vocal sacs are found in:-

Air sacs are surrounded by ...................

Assertion:Air sacs are connected to lungs in Class Aves. Reason: Air sacs supplement respiration in birds.

Assertion:Air sacs are connected to lungs in Class Aves. Reason: Air sacs supplement respiration in birds.

Assertion:Air sacs are connected to lungs in Class Aves. Reason: Air sacs supplement respiration in birds.

Assertion:Air sacs are connected to lungs in Class Aves. Reason: Air sacs supplement respiration in birds.

How many cells are found in an angiosperm embryo sac? Name them.

Antipodals are not found in embryo sac of:

Thin walled air sacs are connected with lungs in