Aves utilize air sacs connected to lungs for supplemental respiration; they have separate sexes, internal fertilization, are oviparous, and undergo direct development.
Aves have air sacs connected to lungs for supplementary respiration, separate sexes, internal fertilization, are oviparous, and have direct development.
| Text | Air sacs connected to lungs in aves for supplement respiration. Sexes are separate. Fertilisation is internal. They are oviparous and development is direct. |
|---|
Learn with these flashcards. Click next, previous, or up to navigate to more flashcards for this subject.
Next card: Unique mammalian characteristic presence milk producing glands mammary
Previous card: Respiration lungs aves is by
Up to card list: @r$ NCERT BIOLOGY CLASS 11 ANIMAL KINGDOM