LSE-02 Solved Assignment 2019 Ecology (IGNOU BSC/BDP)

Description

ASSIGNMENT
(Tutor Marked Assignment)
Ecology

Course Code: LSE- 02
Assignment Code: LSE-02/TMA/2019
Maximum Marks: 100

1. Answer the following questions:
   i) Describe the ecological adaptations in animals to aquatic environment.
   ii) With the help of neat and labelled diagram explain the effect of pH on nutrient availability in soil.
   iii) Discuss the limitations of ecological pyramids.
   iv) Write the characteristics of lake ecosystem.
   v) Briefly describe the main features of a community.
   vi) Make a table listing changes in ecosystems during succession.
   vii) Differentiate between dominant and keystone species.
   viii) Analyse the model that highlights the factors which influence the environmental impact of a population.
2. Make clear and labelled diagrams of the following :
   i) Relationship of Ecology with other disciplines of Biology.
   ii) Zones of atmosphere based on the air temperature.
   iii) Carbon cycle.
   iv) Types of survivorship curves.
3. Write detailed account on the following:
   i) Types of forests.
   ii) Causes and consequences of water pollution.