Solve your IGNOU Doubts
Solve your IGNOU Doubts
Question:

What do you understand by interactivity in radio programmes ? Explain with examples. 

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Question:

What is formative evaluation and how is it different from summative evaluation? Explain in the context of radio programming

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Question:

Discuss the major challenges faced by community radio stations in India. 

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Question:

What role can radio play in the field of health and nutrition ?

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Question:

Give two distinguishing morphological features of each of the following orders:

i) Cingulata

ii) Sirenia

iii) Primate

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Question:

List and give one function of the four glands of the integument of mammals.

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Question:

Where was the Archaeopteryx discovered? Give reasons for the Archaeopteryx being considered the connecting link between reptiles and birds.

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Question:

How do crocodiles and alligators differ from each other?

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Question:

How are tuataras different from lizards?

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Question:

Explain the mechanism of circulation in amphibians.

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Question:

Why do marine teleosts need to drink large amounts of seawater? How do the freshwater teleosts overcome their osmoregulatory challenges?

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Question:

Describe the common morphological features of hagfishes and lampreys. How do they differ from each other?

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Question:

Name five hallmarks shared by all chordates, and explain the function of each.

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Question:

Sate whether the following statements are True (T) or False (F)

i) All lampreys are hermaphrodites.

ii) Ammocoete larvae metamorphose into adults in 3 to 7 days.

iii) The pattern of structure of limbs and girdles found in amphibians is different from those found in higher tetrapods.

iv) Gills are used as respiratory organs in larvae of Anura and in adults of urodeles.

v) Birds and crocodiles belong to a monophyletic group.

vi) In snakes, spur like rudiments of hind legs are only present in the cobras.

vii) The feather of birds consists of more than 90% of a particular type of alpha keratin, which is protein.

viii) Most of the female birds have only the right ovary and oviduct.

ix) The newborn babies of deer and horses are precocial.

x) Cynodonts developed homodont teeth.

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Question:

Describe the water vascular system of a sea star.

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Question:

Write brief notes on :

i) Shell in Bivalvia

ii) Crystalline style

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Question:

“Insects have dominated the terrestrial environment”. What are the reasons for the success of the insects in the terrestrial environment?

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Question:

What are true coelomates? Discuss their advantages.

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Question:

What is parasitic adaptation? Explain the adaptations that have taken place in Ascaris lumbricoides.

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Question:

Name three important characters of Platyhelminthes for considering them more advanced than cnidarians.

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