Question

What are Aves ????....​

Answer 1

Aves:

Aves is a class in which birds and avein dinosaurs are included.

Characteristics:

• 1 pair of wings is present.
• Modified forelimbs are present.
• Hollow bones are present ( Pneumatic bones ).
• Body is covered with feathers .
• Strong flight muscles are present.
• One ovary is present.
• There are air sacs in lungs.
• Beak is present.
• Bipedal locomotion.
• Excretion is done using kidneys .
• Digestive system is complete.
• Four chambered heart is present.

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Answer 2

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$\orange\bigstar$ Aves :

$\star$ The class of vertebrates which include birds is known as aves.

$\star$ They are homothermic animals which means maintain there internal body temprature against the change in environmental temprature.

$\star$ Huxly described birds as glorified reptiles where as young describe them as mater of air.

$\star$ Study of birds is known as ornithology.

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$\blue\bigstar$Characterstics :-

• They have four chambered heart.

• The era in which birds originates is mid of mesosic age.

• forelimbs are modified into wings through feather where as hind limbs are modified into 3 clawless digit.

• All the organ system are well developed.

• Hindlimbs posses scarls on their surface and it used for running, landing, clasping.

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