MDCAT Biology Chapter 8 MCQ's Test With Answers

MDCAT Biology Chapter 8 MCQ's Test

Sr. # Questions Answers Choice
1 A lichen is the symbiotic association between a Fungus and a bryophyte Roots of higher plants and an alga Fungus and an alga Roots of a higher plants and a fungus
2 Which one of the following is true Population is a larger unit than a community Bioshpere is a smaller unit than a biome Biome and community are equal units Biome is a larger unit than population
3 The example of decomposers of the ecosystem are the Fungi Fungi and bacteria Bacteria Viruses
4 The biotic components of the ecosystem are the Producers Consumers Producers,consumers and the decomposers Decomposers
5 Producers are Heterophs Green plants Carnivores Herbivores
6 A community is A collection of plants and animals Autotrophs and heterotrops Population of different species living together in the same area Food chain
7 The study of relationship of an organisms to their environment is known is Biology Ecology Zoology Mycology
8 Elements required in large amount are called Micronutrient Macronutrient Organic elements Inorganic elements
9 Grazers feed mainly on which kind of plants Tree leaves Shrubs Grasses Cereals
10 Infestations are the diseases which are caused by ________ in living organisms Parasites Saprophytes Bacteria Viruses
11 Moss stage is represented by Polytrichum Tortula Adiantum Both a and b
12 Which of these stages appears as a pioneer during succession on barren land? Foliage lichens Mosses Crustose lichens Fruiticose lichens
13 A symbiotic relationship that benefits one species & neither helps nor harms the other is called Mycorrihza Symbiosis Commensalism Mutualism
14 Consumers that prey other animals are known as Predators Preys Parasites Competitors
15 Which include seral stages of a primary succession are Lichen & algae Mosses and ferns Grasses & shrubs All of these
16 Climax in zerosere is the establishment fo Woody forest Grasses Herbs Shrubs
17 The succession which occurs in dry soil or rock is Hydrosere Xerosere Decrosere All of these
18 The change in structure of community of an ecosystem during a time period is called Succession Evolution Mutation Regression
19 The major components of ecosystem are 2 3 4 6
20 Food chains combine to form Large food chain Large organisms Trophic levels Food web
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