December 18, 2014

Junior Inter Zoology Important Questions and Answers for AP and Telangana

Q: What is meant by nocturnal periodicity?
A: The tendency of microfilariae to reach peripheral circulation only during night time (10 P.M. to 4 A.M.) is known as nocturnal periodicity.

Q: Write scientific names of any two plants with hallucinogenic properties.
A: Atropa belladona, Datura

Q: Define drug abuse.
A: When a chemical substance (i.e., drug) is taken for a purpose other than the medicinal use or in excess that impair one's physical or psychological functions is known as drug abuse.

Q: From which substance smack and coke are obtained?
A: a) Smack (i.e., heroin) is obtained by acetylation of morphine (Morphine is obtained from dried latex of unripe pod of poppy plant).
b) Coke is obtained from the leaves of coca plant (Erythroxylum coca).

Q: What are the two chief morphological body forms of cnidarians? What are their chief functions?
A: a) Cnidarians have two chief morphological body forms. They are polyp and medusa.
b) Polyps are sessile, cylindrical forms and reproduce asexually.
Medusae are free swimming umbrella like forms and reproduce sexually.

Q: What are the excretory cells of flatworms? What is the other important function of these specialised cells?
A: a) Flame cells/ Protonephridia.
b) Osmoregulation.

Q: What is the function of radula? Give the name of the group of molluscs which do not possess a radula.
A: a) Food collection / Feeding.
b) Pelecypoda / Bivalvia.

Q: What are claspers? Which group of fishes possess them?
A: a) The copulatory processes developed on pelvic fins of male cartilagenous fishes are called claspers.
b) Chondrichthys.

Q: What are pneumatic bones? How do they help birds?
A: a) The bones with air cavities are known as pneumatic bones. They are found in birds.
b) Pneumatic bones make the endoskeleton light (one of the flight adaptations).

Q: Name the three meninges. In which group of animals do you find all of them?
A: a) Outer duramater, middle arachnoid mater and inner piamater.
b) Mammalia.

Related Posts

No comments:

Post a Comment