OVIPAROUS

the characteristic features of class-Aves are I. they are warm-blodded and oviparous. ltb rgt II.they have pneumatic bones. III. Syrinx is not present. IV. Fertilisation is external. Choose the correct option.

Oviparity is common in

Distinguish between : (a) Oviparity and Viviparity (b) Marsupials and Placental mammals.

Which of the following character correctly matches with the animal? (A) A viviparous animal -Aptenodytes (B) A fish possessing a poison sting - Torpedo (C) Animal, which exhibits alternation of generation - Obelia (D) Oviparous animal with mammary gland - Kangaroo

Which one is correctly matched ? {:(,"Animal" , "Characteristic" , "Taxon") , ((A) , "Millipede" , "Ventral nerve cord" , "Arachnida"),((B), "Silver fish" , "Pectoral and pelvic fins" , "Chordata"),((C), "Duck - billed Platypus" , "Oviparous" , "Mammalia"), ((D) , "Sea Anemous" , "Triploblastic" , "Cnidaria"):}

Match column I with column II and select the correct option from the gives codes. {:(A."Cartilaginous fishes",(i)"Usually external fertilisation"),(B."Bony fishes",(ii)"Internal fertilisation"),(,(iii)"Mostly oviparous"),(,(iv)"Mostly viviparous"),(,(v)"Direct development"):}

Match column I with column II and select the correct option from the given codes. {:(,"Column I",,"Column II"),(A.,"Protochordata",(i),"Delphinus"),(B.,"Limbless amphibia",(ii),"Myxine"),(C.,"Oviparous mammal",(iii),"Ornithorhynchus"),(D.,"Aquatic mammal",(iv),"Doliolum"),(E.,"Jawless vertebrate",(v),"Ichthyophis"):}

consider the following statements and mark them as true/false. I. The eggs laid by alligator are cleidoic eggs. II. The eggs laid by Panthera leo are non-cleidoic nature. III. Platypus is an oviparous mammal. IV. The chances of survival of young ones is less in viviparous organisms. Choose the correct codes.