FRANK Solutions for Class 9 Biology Chapter 11 - Understanding EcoSystems
What is a man-made ecosystem? What can you write about the flora of coniferous forests? If you need help with the answers to these important questions, check out TopperLearning’s Frank Solutions for ICSE Class 9 Biology Chapter 11 Understanding Ecosystems.
In this chapter, revise the difference between aquatic ecosystem and terrestrial ecosystem. Explore the answers of MCQs with our Frank textbook solutions. Study lessons on tropical rainforests with the help of our model answers. To gain an in-depth understanding about environment and ecosystems, browse ICSE Class 9 Biology learning materials such as sample questions papers with solutions, online practice tests and more.
Chapter 11 - Understanding EcoSystems 94
(i) It includes a complex assemblage of different kinds of biotic and abiotic factors.
(ii) The temperature and rainfall conditions of a place determine the nature and characteristics of forests.
Tropical rainforests mainly occur inside the World's equatorial regions. They are restricted to the small land area between the Tropic of Capricorn and the Tropic of Cancer.
Features of forest biomes are:
(i) In tropical rainforest biomes, there is an amazing biodiversity of plants and animals. Trees are tall, with buttressed trunks and shallow roots, mostly evergreen, with large dark green leaves. Plants such as orchids, bromeliads, vines, lianas, ferns, mosses, and palms are present in tropical forests. Fauna include numerous birds, bats, amphibians, reptiles, small mammals, and a huge diversity of insects.
(ii) In deciduous rainforest biomes, many types of tall and short trees, shrubs, herbs, mosses and lichens are found occupying five different layers. Also a huge variety of fauna like panda, brown bear, hedgehog etc are found.
(iii) Not much biodiversity occurs in coniferous forest biomes. The trees here are found in single strands with no undergrowth. Plants predominantly found here include firs, pines, spruces and hemlock while the ground is covered with mosses, grasses, sedges and herbs that are adapted to cold. Fur bearing animals are found abundantly like brown bear, fox, mink, beavers, deer and large birds of prey like red tailed hawks. Many animals migrate or hibernate during the extremely cold winters.
(ii) (c) an artificial ecosystem
(iii) (c) communities of organisms interacting with one another
(iv) (c) Tansley
(v) (c) 100-150 cm
(vi) (b) Decomposers
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