Animal kingdom

which features helps birds in flying?

• Vertebral column

• Crop

• Gizzard

• Pneumatic bones

Circulatory system in cockroach is ------------

• Haemocoel

• Pseudocoel

• Enterocoelom

• Eucoelom

Animal having a water canal system and spicules

• Pleurobrachia

• Antedon

• Spongilla

• Aurelia

Locomotory organs in Neries

• Setae

• Parapodia

• Jointed legs

• Arms

Emission of light in aquatic animals

• Bioluminescence

• Hot light

• Thermal radiation

• Cold receptors

Rasping organ in molluscs

• Ctenidia

• Nephridia

• Radula

• Gills

Which is the arthropodan living fossil

• Locusta

• Bombyx mori

• Limulus

• Laccifer

Chordates that have notochord in larval tail

• Balanoglossus

• Hemichordata

• Cephalochordata

• Urochordata

Scientific name of Angel fish

• Pterophyllum

• Betta

• Exocoetus

• Clarias

Limbless amphibian

• Bufo

• Salamndra

• Ichthyopis

• Rana tigris