The main features of birds. How can birds be described according to examples of representative species, basic morphology, skin, respiration, circulation, nitrogen waste, thermal control and types of reproduction?
The main features of birds.
Examples of representative species:Examples includes crows, sparrows, parrots, penguins etc.
Basic morphology: Possess feathers,bones are pneumatic,beaks are horny and aerodynamic body.
Skin: Covered with feathers,impermeable ,possess keratin or keratinized, presence of uropygial gland.
Respiration:Mainly pulmonary.
Circulation:Complete and closed heart , presence of four chambers in heart.
Nitrogen waste: Uric acid.
Thermal control: Homeothermic.
Types of reproduction: Sexual reproduction with internal fertilization,eggs are shelled and possess extraembryonic membranes.
Get Answers For Free
Most questions answered within 1 hours.