1
Multiple epidermis on dorsal and ventral side of the leaf is found in1. Zea mays2. Ficus benghalensis3. Mangifera indica4. Nerium oleander
2
Organisms in the Kingdom Animalia are: 1) mutlicellular & heterotrophic 2) multicellular & autotrophic 3) unicellular & autotrophic 4) unicellular & autotrophic
3 Biological Classification
Antiviral proteins produced by viral infected cells are known as 1) Interferons 2) replicons 3) chromatin 4) Penicillin
4 The Living World
Which of the following statements is true regarding individuals of same species
1) They are interbreeding 2) They live in same niche 3) They live in different niche 4) They live in different habitat
Solution
Uniform interbreeding population or group of individuals which freely interbreed among themselves, constitute a species.
5 Animal Kingdom
Retia mirabilia specially in thoracic region are extensively developed in
1) Artiodactyla
2) Perrisodactyla
3) Cetacea
4) All of the above
When the arteries and veins lying very close to each other forms a complex structure it is known as a rete mirabile, found in some vertebrates. The retia mirabilia of cetaceans in thoracic region are considered as one of the morphologic adaptations which modulate hemodynamics during diving and resurfacing.
6 Digestion and Absorption
Which of the following is caused in human liver by anaerobic bacteria?
(1) Foamy liver (2) Hobnail liver (3) Liver spots (4) None of these
Foamy liver is presence of gas bubbles in the liver as a result of infection with anaerobic bacteria.
This produces a honeycomb appearance in the live tissue.
7
In man sperms move after ejaculation at a rate of nearly1. 2 to 4 mm/minute2. 2 to 4 feet/minute3. 2 to 4 inches/minute4. 2 to 4 cms/minute
8
In a eukaryotic cell which of the following RNA undergoes translation ?1) r-RNA2) t-RNA3) m-RNA4) all these three types
9
Peacetime deaths concern to
(1) Effect of poison on stomach
(2) Food poisoning
(3) Gaseous poisoning
(4) Snake venom cause agglutination of R.B.Cs
10 The Living World
Calyptra develops from
1) Venter wall of archegonium
2) Outgrowth of gametophyte
3) Neck wall of archegonium
4) Paraphysis of the archegonial branch
Answer
Venter wall of archegonium
Calyptra is a covering developed from the ventre of archegonium in bryophytes and pteridophytes. t acts as a transpiration shield around the immature capsule and provides protection to the young capsule.
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