Following are important short answer and very short answer questions for Junior Intermediate Examinations for BiPC students from Zoology subject. The questions and answers are prepares by the subject experts. These are useful for both AP and Telangana IPE Board examinations.
Also Read: Junior Inter Physics – Important SAQs
Unit – I
Q: Define the term histology. What is its other name?
A: a) Study of structure and arrangement of tissues in organs is known as Histology.
Q: What is meant by tautonymy? Give two examples.
A: a) The practice of naming animals, in which the generic name and species name are same is known as tautonymy.
b) Naja naja (Cobra); Axis axis (Spotted deer)
Unit – III
Q: Distinguish between amphids and phasmids.
A: a) The cuticular depressions around oral region innematodes are known as amphids. They act as chemo receptors.
b) The posterior glandulo sensory structures of some nematodes are called phasmids.
Q: What is botryoidal tissue?
A: Characteristic tissue present in the coelom of hirudineans (e.g., leeches) is known as botryoidal tissue. Probably it helps in excretion and storage of iron and calcium.
Q: What are the respiratory structures of Limulus and Palaemnaeus?
A: a) Respiratory organs of Limulus: Book gills
b) Respiratory organs of Palaemnaeus: Book lungs.
Q: What is Aristotle’s lantern? Give an example of an animal possessing it.
A: a) The complex five jawed masticatory structure present in the mouth of sea urchins is called Aristotle’s Lantern.
b) Echinus (sea urchin)
Unit – IV
Q: What are claspers? Which group of fishes possess them?
A: a) Deeply grooved cartilagenous extensions of pelvic fins of male sharks are called claspers.
Q: What are Jacobson’s organs? What is their function?
A: a) The sense organs found in the roof of buceal cavity of lizards and snakes are called Jacobson’s organs.
b) They help in detecting smell (olfaction).
Q: What is wish bone? What are the skeletal components that form it?
A: a) The V-shaped bone in the pectoral glidle of birds is known as furcula or wish bone.
b) It is formed by the clavicles of bothsides and interclavicle.
Q: Name the three meninges. In which group of vertebrata they are present?
A: a) Outer duramater, middle archnoid layer and inner piamater.
Short Answer Questions:
Unit – I
Q: What is meant by classification? Explain the need for classification.
A: The process by which organisms are grouped into convenient categories based on some easily observable characters is
known as classification.
It is impossible to study all living organisms.
Hence classification is necessary. Scientific term used for these categories is taxon (plural – taxa).
Hence, based on characteristics, all living organisms can be classified into different taxa. This process of classification is called taxonomy. Characterisation, identification, nomenclature and classification are the process that are basic to taxonomy.
Q: Write short notes on in-situ conservation.
A: a) The process of protecting an animal species in its natural habitat is known as in-situ conservation.
b) It maintains recovering population in the surroundings where they have developed their distinctive properties.
c) Conservationists identified certain biodiversity hot spots for maxmimum protection as they are characterised by very high levels of species richness and high degree of endemism.
d) Biodiversity hot spots are biologically the richest and the most threatened terrestrial ecoregions.
Unit – III
Q: What are the salient features of exhibited by polychaetes?
A: Polychaeta is one of the classes of phylum Annelida. It includes marine worms called bristle worms.
Polychaetes have distinct head with eyes, tentacles, palps etc.
Locomotory organs are parapodia, which are provided with many setae.
Clitellum is absent.
These are unisexual forms. Gonoducts are absent.
Fertilisation is external.
Larva is trochophore. Eg: Nereis, Arenicola
Unit – IV
Q: What are the features peculiar to Ratitae birds? Give two examples.
A: 1. Ratitae is one of the super orders of the class Aves.
2. It includes all modern flightless birds.
3. They exhibit discontinuous distribution
4. Ratitae birds are characterised by Reduced wings Raft like keel without keel Males with penis Absence of syrinx, clavicles and preen gland
5. Hatchlings are precocial
E.g: Struthio camelus, Rhea americana
Q: Mention any two products of medicinal importance obtained from
A: a) Anticancer drug vinblastin from Vinca rosea.
b) For cardiac problems digitalis from Digitalis purpurea.
Q: Define species richness.
A: Number species per unit area is known as species richness. If
more number of species are present in that unit area, the more is
the species richness.