Biology [Zoology]
Class: XI SET 1 Full Mark: 38
Attempt all questions
Group A
Circle the correct one from given alternatives [6x1=6]
1. First National park established in Nepal is
a. Chitawan national park b.Bardia national park
c. Shivapuri national park d. Sagarmatha national park
2. Hydra is put under the phylum Cnidaria because it has
a) Cnidoblasts b) tentacles c) hypostome d) interstitial cells
3. During copulation of earthworm, sperm is received through
a. nephridial pore b. female genital pore
c. spermathecal pore d. dorsal pore
4. The flipper of whale and hand of man are
a. Vestigial organ b. Homologous organ c. Analogous organ d. All
5. Pneumatic bone is the characteristic feature of
a. chordata b. mammalia c. aves d. All
6. Which fish shows the Anadromous migration
a. Salmon b. Lamprey c. Gobies d. All
Group B
Give Short answer to the following: (4x4=16)
7. How is earthworm good friend to the farmer?
8. Write the characteristic features of arboreal animal.
Or
What is reflex action? Describe the mechanism of reflex action. [3+2]
9. Draw a well labelled diagram of bucco-pharyngeal cavity of frog.
10. Give the important characters of Arthropoda with examples.
Group C
Give Long answer to the following questions. [2x8=16]
11. Explain the human evolution from hominid ancestor. [8]
12. What is myogenic heart? Describe the internal structure of heart of frog with a well labeled
diagram and also describe their working mechanism.
Or
Describe the life cycle of Plasmodium vivax in Mosquito with suitable diagram. [4+4]
Class: XI SET 2 Full Mark: 38
Attempt all questions
Group A
Circle the correct one from given alternatives [6x1=6]
1. What is the cranial capacity of pecking man
a) 700 cc
b) 900 cc
c) 1075 cc
d) 1450
2. Pseudocoelom is found in
a) Platyhelminthes
b) Aschelminthes
c) Platyhelminthes & Aschelminthes
d) Annelida
3. Study of human is called
a) Angiology
b) Anthropology
c) Homology
d) Entomology
4. Which muscles are responsible for inspiration
a) Sternohyal muscles
b) Petrohyal muscles
c) Submental muscles
d) All
5. Which fish shows the Anadromous migration
a) Salmon
b) Lamprey
c) Gobies
d) All
6. Infected stage of Plasmodium is
a. Trophozoites b. Sporozoites c. Cryptozoites d. Merozoites
Group B
7. Describe the erythrocytic cycle of Plasmodium. [3+2]
8. Write the functions of liver of frog.
Or,
Write the effects of use of pesticides.
9. What is reflex action? Describe the mechanism of reflex action. [3+2]
10. Give the important characters of mollusca with examples.
Group C
Give Long answer to the following questions. [2x8=16]
11. Explain the natural selection theory of origin of species with examples. [6+2]
12. Draw a well labelled diagram of alimentary canal of earthworm. How is earthworm good
friend to farmers? [4+4]
Or
Draw a well labelled diagram of alimentary canal of frog. Write the functions of liver of frog.
Class: XI SET 3 Full Mark: 38
Attempt all questions
Group A
Circle the correct one from given alternatives [6x1=6]
1. One of the ex situ conservation methods for endangered species is
a. Wild life sanctuaries b. Biosphere reserves
c. Cryopreservation d. National parks
2. The flipper of whale and hand of man are
a. Vestigial organ b. Homologous organ c. Analogous organ d. All
3. Study of bird is called
a. osteology b. ossification c. ornithology d. histology
4. Which of the following causes photochemical smog?
a. SO4 b. CO2 c. NO2 d. None
5. Largest class of animal kingdom is the
a. Mammalia b. Arthropoda c. Insecta d. both a & c
6. Protrusible tongue is the characters of …………………..adaptation.
a. Volant b. aquatic c. arboreal d. cursorial
Group B
7. Describe the asexual reproduction in Paramecium.
8. Describe the hepatic portal system of frog.
Or,
How homologous and analogous organs suggest the organic evolution?
9. Differentiate between chondrichthyes and osteichthyes.
10. What steps would you suggest for conservation of wildlife?
Group C
Give Long answer to the following questions. [2x8=16]
11. Discus the Neo-darwinism thery of evolution.
12. What is protandrous? Describe the reproductive system of earthworm with suitable
diagram. [1+3.5+3.5]
Or
What is amplexus? Describe the reproductive system of frog with suitable diagram.
[1+3.5+3.5]
