Bachelor’s Degree Programme (BSCG) – INSECT VECTORS AND VECTOR BORNE DISEASES Solved Assignment Answer | BZYET 143 | 2021-2022

Free BZYET 143 Solved Assignment Answer | INSECT VECTORS AND VECTOR BORNE DISEASES | For July 2021 – June 2022

IGNOU BZYET 143 Solved Assignment, This assignment is the curriculum of the Bachelor of Science (General) (BSCG) program. For other course, students check our website categories section to find their courses and assignments over there.

BZYET-143 INSECT VECTORS AND VECTOR BORNE DISEASES Solved Assignment 2021-2022

IGNOU BZYET 143 INSECT VECTORS AND VECTOR BORNE DISEASES assignment are of 100 marks. There is only two section – A and B. Students have to answer all the questions. Download IGNOU BZYET 143 Assignment free without any registration, Students can easily download the IGNOU assignment question paper from the official website of the university. They are not required to pay any fees or charges for this.

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The answer of BZYET-143 | INSECT VECTORS AND VECTOR BORNE DISEASES | Solved Assignment 2021-2022:

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

Part-A (Maximum Marks: 50)

1. “Insects are a diverse group of animals that are well adapted to different environments” Justify the statement.

2. Write short notes on the following:
i) Mouthpart modifications in insects
ii) Types of antennae in insects
iii) Typical structure of insect wing
iv) Leg modification in insects

3. a) Write a short note on host-parasite interactions and their importance for public health.
b) What are different adaptations adopted by vectors?

4. Write short notes on the following:
i) Prevention of control measures of fleas
ii) Typhus fever
iii) Tunga penetrans
iv) Transmission of plague

5. Write short notes on the following:
a) Medical importance of lice.
b) Medically important Insect Orders.

Part-B (Maximum Marks: 50)

6. a) Describe the life cycle of the Anopheles mosquito.
b) Explain the epidemiology of malarial parasites.

7. i) Fill in the blanks:
a) Culex-borne diseases can be controlled by killing …….……….. in their breeding grounds and ……………….. using space ……………… .
b) Stagnant water bodies act as …………….., ……..…………. for mosquito.
c) Mosquitoes can be controlled genetically by …………..male technique and ………………… replacement.
d) Mosquito nets used against Culex mosquitoes should not have ………… holes per square inch.
ii) Write two various methods of Culex control.

8. i) Give differences between the following:
a) Extrinsic incubation period and intrinsic incubation period
b) Transverse and vertical transmission
c) Urban cycle and sylvatic cycle

ii) Draw labeled diagrams of the following:
a) Life cycle of Aedes mosquito
b) Dengue transmission Cycle

9. i) Fill in the blanks.
a) The life cycle of Phlebotomus argentipes consists of 4 stages namely eggs, larva, ………………… and ………………… .
b) Freshly laid eggs of sandflies are creamy white in colour which gradually turn to ………………… .
c) Sandflies are natives of ………………… climate.
d) Female sand flies feed on a wide variety of ………………… hosts.
e) Prevalence of vector is dependent upon the environmental factors such as humidity, temperature and …………………. .
ii) Write the ecological factors favourable for the transmission of Kala-azar.

10. a) List five control measures that you will take at home to keep the house flies away.
b) Explain the concept of Integrated Vector Management.

Wrapped Up

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