MDCAT Biology Chapter 8 MCQ's Test With Answers

MDCAT Biology Chapter 8 MCQ's Test

Sr. # Questions Answers Choice
1 Which of the following is an example of primary succession Foliage stage Moss stage Hydrosere and xerosere None of these
2 --------------- begins forged from bare rocks, sand for where no previous life was found Secondary succession Primary succession Succession Climax period
3 A new system is developed after an existing ecosystem is called Primary ecosystem Secondary ecosystem Hydrosere Xerosere
4 In an ecosystem after succession, a new invaders are called Pioneers Predecessors Climax community None of these
5 Plant and animals replace the earlier ones in a way of Community relay Succession Predecessors All of these
6 Community structures of an ecosystem is called Biosphere Succession Progression Climax community
7 Food web is the group of various Food substances Food chains Trophic levels All of these
8 Food web maintains the stability of Environment Biosphere Ecosystem Biotic components
9 All food chains and food webs begin from Consumers Green plants Fungi and bryophytes Dead organic matter
10 Food chain is an example of Predation Mode of nutrition Trophic levels of food All of these
11 After digestion, decomposers releases Various organic substances from organic matter Nitrates, phosphates, and calcium Citric acid, tartaric acid and oxlic acid All of these
12 Decomposers get their food from Soil particles Dead organic matter Green plants Living organisms
13 Bacterial and fungi are mainly included in the group of Consumers Decomposers Producers None of these
14 Consumers Are primarily animals that obtain energy directly or indirectly from producers Are primarily bacterial organisms that obtain energy directly or indirectly from producers Are secondary animals that obtain energy directly or indirectly from producers Are secondary plants that obtain energy directly or indirectly from producers
15 ------------------- are the autotrophs that capture and bring light energy into ecosystem Decomposers Algae Producers None o these
16 Which of the following is not true about abiotic components Water Temperature Consumers Gravity
17 Which of the following is not true about biotic components Producers Consumers Decomposers Atmosphere
18 All living organisms supported by biosphere are called Biotic components Abiotic components Autecology Synecology
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