MDCAT Biology Chapter 8 MCQ's Test With Answers

MDCAT Biology Chapter 8 MCQ's Test

Sr. # Questions Answers Choice
1 About 20 years ago what was the rate at which human population was increasing 1% 2% 3% 5%
2 The study of human population and factor affecting it is called Population census Population dynamics Demography Etymology
3 Hemophilia is a ________ disease Heritable Genetic Nutritional deficiency Both a and b
4 Monoculture is One organism A lab culture A pure culture Both b and c
5 Cloud cover is reduced due to Reforestation Afforestration Deforestration Air pollution
6 What are the environmental buffers? Trees Animals Factories Microbes
7 Establishment of new forest at places where no forests existed previously is called Reforestation Afforestration Deforestration Both a and b
8 Which disease is due to nutritional deficiency Scurvy Diabetes Herpes Diphtheria
9 Enrichment of water bodies by organic nutrients is called Organic pollution Eutrophication Sewage pollution Dtergents pollution
10 Taj Mahal's marble has been affected by CFC's Lead pollution Acid rain None
11 The purest form of global warming is in the shape of Disease Flood Acid rain All of these
12 Ozone is present at about ________ km above earth 5 -10 10 - 20 10 - 40 10 - 50
13 Acid rain is mainly due to SO<sub>2</sub> NO<sub>2</sub> Lead components Both a and b
14 Global warming is due to CFC's SO<sub>2</sub> O<sub>3 </sub>depletion CO<sub>2</sub>
15 Pyramid always starts at T<sub>1</sub> T<sub>2</sub> T<sub>3</sub> T<sub>4</sub>
16 Nutrient elements become the part of protoplasm during Photosynthesis Decomposition Fixation Assimilation
17 It is community relay Niche Evolution Speciation Succession
18 Which can't increase their weight in inorganic medium Producer Consumer Decomposer Both b &amp; c
19 Which eat consumers Predators Carnivores Omnivores All
20 Omnivores are described by how many trophic levels Any 2 Any 3 Any 1 Primary &amp; any higher
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