2019-20

BZYCT-131 Solved Assignment 2019-2020 | Animal Diversity | English Medium

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Course Code : BZYCT-131
Course Title : Animal Diversity
Medium : English Medium
Session : 2019-20 (July 2019 and January 2020)
Submission : Submit Before June 2020 Exams
Assignment Questions : Click Here

Description

Course Code : BZYCT-131
Course Title : Animal Diversity
Medium : English Medium
Program : BSCG / B.Sc (CBCS)
Maximum Marks : 100
Weightage : 30%
Session : Valid from 1st July, 2019 to 30th June, 2020
Submission : Submit Before June 2020 Exams
Solution Type : Softcopy (PDF File)

ASSIGNMENT
ANIMAL DIVERSITY

Course Code: BZYCT-131
Assignment Code: BZYCT-131/TMA/2019-2020
Maximum Marks: 100

Note: Attempt all questions. The marks for each question are indicated against it.

PART-A (Maximum Marks: 50)

1. Fill in the blanks with suitable words:

a) Digestion is ……………… in Branchiostoma.
b) Elasmobranchs have a ……………… mouth.
c) The flagellated chamber of the canal system of sponges is lined by ……………… .
d) The ……………… of the filarial worm releases small microfilariae into blood and lymphatic system.
e) The special comb-like sense organs of scorpions are ……………… .
f) The fused pair of maxillae of millipedes is called ……………… .
g) ……………… is the only living genus under the subclass Nautiloidea.
h) In cephalopods a pair of ……………… hearts pump the blood through the gills.
i) Nephridia are ……………… in hemichordates.
j) The bipinnaria larva of ……………… is similar to tornaria larva.

2. Describe parental care in amphibians.

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

4. Write short notes on the following :

a) Book lungs of Arachnida
b) Pectines of scorpions

5. What is meant by torsion? Explain the process in detail.

Part-B (Maximum Marks: 50)

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

i) Presence of cranium and paired appendages is a characteristic feature of Agnatha.
ii) Gonangium is a sexual way of reproduction.
iii) The excretory organs of crustaceans are called antennary or maxilliary glands depending on their position.
iv) The two pairs of insect wings are articulated with pro and mesothorax.
v) The secretion of prothoracic glands regulates metamorphosis in insects.
vi) Class Xiphosura is regarded as living fossil.
vii) Development in bivalves includes trochophore and veliger larvae.
viii) The blood of cephalopods contains haemocyanin.
ix) In brittle stars tube feet aid in locomotion.
x) Aristotle’s lantern is a complex chewing organ of sea urchin.

7. Describe canal system in Porifera.

8. a) Write unique features of Phylum Ciliophora.
b) State the affinities of Hemichordates with Echinoderms.

9. Describe the important adaptations found in birds that allow them to fly.

10. a) Describe the most important adaptations in reptiles that allowed them to make a complete transition from water to land environment.

b) Differentiate between the following pairs:
i) Orders Perissodactyla and Artiodactyla
ii) Infra classes Eutheria and Metatheria

 

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