Scales of Reptiles and Fishes
See Answer →Give the examples of following: (Biological names)
i) Flying fish
ii) Flying reptile
iii) Lung fish iv) Aquatic mammal
See Answer →State the function of Weberian ossicles in teleosts.
See Answer →Dental formulae of some mammals are given below. Identify the mammal to which the formula belongs from among the names of mammals.
i) =26 (cat, elephant, cow)
ii) = 42 (elephant, man, dog)
iii) = 32 (elephant, horse, man)
iv) = 28 (cow, dog, cat)
List any four primitive features of the tuatara.
See Answer →List any two characters each of cyclostomes that are primitive, specialized and degenerated.
See Answer →Protonephridia and Metanephridia
See Answer →Polymorphism in Cnidaria and Insecta
See Answer →Exoskeleton and Endoskeleton
See Answer →Protozoa and Porifera
See Answer →List any five types of beneficial products obtained from nonchordates. Explain the process of production of any two of these products.
See Answer →How do nematodes cause harm to plants and humans? Describe.
See Answer →Discuss the communication behaviour found in nonchordates.
See Answer →Describe the phenomenon of migration in insects.
See Answer →Epitoky
See Answer →Regeneration
See Answer →Strobilation
See Answer →Compare the neurosecretory system of an insect with that of a crustacean.
See Answer →With the help of examples describe the types of mechanoreceptors found in nonchordates and explain their role in information processing.
See Answer →Discuss the respiratory organs found in nonchordates
See Answer →