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BT101 Midterm Grand Quiz 170 MCQs

Ecology, Biodiversity & Evolution-I PDF 439 KBUpdated 23 Oct 2026
Midterm past paper BT101 Midterm Grand Quiz 170 MCQs PDF 439 KB
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BT101 Ecology, Biodiversity & Evolution-I
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23 Oct 2026
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  1. The rate that new organic matter is made by means of individual

growth and reproduction in all the herbivores is -------------------------

Secondary

productivity

  1. The Liberat chemical-bond energy for metabolic use in glycolysis,

Krebs’s cycle and electron transport chain

Heterotrophs

  1. Which of these Introduced to Hawaii in the late 1800’s.

Asian Tiger Mosquito

  1. There is No limit to number of ------- in Mullerian mimicry

species participating

  1. Negative Phototactic movement occurs in ----------

Earthworms

  1. oscillations are produced by interactions between populations of at

least ----different species

two

  1. Mutualistic gut flora e.g. cellulose digesting ------

bacteria

  1. Removal of apex predator in environment called --------

Cascade Effect

  1. analogous structures are the product of ---------

Convergent Evolution

  1. Use of DDT was Banned in US in ------
  2. According to ------- concept ‘Fossils resemble but are not exactly the

same as modern species

Theory of

  1. At either limit, one or more essential functions cease

Tolerance range

  1. They Synthesis of the organic compounds of their bodies from

inorganic precursors

Autotrophs

  1. It Occurs when uptake from the water is greater than excretion

Bioconcentration

  1. Prokaryotic microbes can synthesize ------and nitrate from N2 in the

ammonia

  1. Arctic fox changes from brown or grey in the ------ to white in the

winter

summer

  1. the water that goes into the atmosphere is ------- than it was on

Earth.

cleaner

  1. Pathogens is the source of --------------- pollutions.
  2. Temperature of the troposphere ------- with altitude.

decreases

  1. ------ is an early freshwater reptile found as fossils from the early

Permian period.

Mesosaurus

  1. Mutualism Long-term relationship between individuals of ----- species different
  2. There is limited number of feeding or trophic levels in -----
  3. Which off the following pyramids is formed only in aquatic

ecosystem.

Pyramid of inverted

biomass

  1. ---- is loss of feature due to loss of its value in changed environment

Vestigiality

  1. They Release digestive enzymes by their hyphae

Fungi

  1. Ecologists support ------ concept of communities.

individualistic

  1. Distribution and concentration of variable varies in --------

space and time

  1. troposphere contains ----- of the atmosphere's mass

75%

  1. Koalas are the example of ------

Folivores

  1. Insects, frog, turtle undergo -----

Aestivation

  1. One of the major disruptions is loss of habitat.

Extinction

  1. Layers of atmosphere increases with ------- in some regions

altitude

  1. Variability in Net Primary Productivity Wetlands and tropical rain

2000 g/m2/ year

  1. Mercury bioaccumulates in the ------ of top predators of the open

ocean

muscles

  1. Different colors of Mullerian mimicry depend on ------ and visibility

location

  1. Volcanic eruptions release ------ into the atmosphere

sulfur

  1. Which of the following is not the characteristic of Eutrophic lake

Good light

penetration

  1. Atmosphere is ------ nitrogen by volume

78%

  1. ------- are strongly affected by light pollution.

Reptiles · Grand Quiz · BT101 - Ecology, Biodiversity & Evolution-I · 30/ MARKS · (in lieu of Midterm examination) · 1 to 83 lessons for grand quiz

  1. Who was proposed the law of use and disuse

LAMARCK

  1. Land fill is the example of --------

Point source

pollution

  1. ------ enables animals to survive periods of reduced food availability.

Torpor

  1. Adult human body contains ----- of water by weight.

60%

  1. ------- was Father of geology and stratigraphy

Nicolas Steno

  1. In nitrogen cycle Immobilization is the opposite of -------

mineralization

  1. Cascade Effect leads to increase in their --------species.

prey

  1. Flies and ------- have outlandish proboscises

moths

  1. Food chain only follows a direct, ------- pathway of one animal at a

time.

linear

  1. Which of the following has low algal growth

Oligotrophic lake

  1. a specific functional role and place of an organism called its -------

niche

  1. In mesosphere Lower boundary is -------- to 65 kilometres
  2. The atmosphere provides Protective shield against radiation and -----

cosmic rays

  1. Thermosphere Known as ------

ionosphere

  1. It Represent tiny portion of the complexity of real ecosystems

Food Web

  1. Each -------- trophic level has its own secondary productivity

heterotroph

  1. In interspecific counter-illumination eliminate -------

light

  1. In crypsis Animals habitually press their bodies to the -----

ground

  1. ------- competition, occurs between two species to use the same

resources

Interspecific

  1. The process of -------- through plant leaves is called transpiration
  2. ----is the amount of chemical energy as biomass that primary

producers create in a given length of time.

Gross primary

production (GPP)

  1. Hibernation occur which of the following animals

Rodents

  1. There are ------ types of herbivory depending upon different feeding

habits.

eight

  1. They obtain energy by means of inorganic oxidation reactions

Chemoautotrophs

  1. Existence of shared ancestry between a pair of structures, or genes,

in different taxa occur in

Divergent evolution

  1. Mimicry resemblance of one ------ to another for protective or

aggressive purposes

species

  1. Which of the following factor are the major reason of invasion of

species

Human activities

  1. Motion dazzling is protection without ------

hiding

  1. Bacteria are use to remove organic matter dissolved in water

(ODW)in the ------- process of conventional sewage treatment

Secondary

  1. Species Invest more heavily in fewer offspring
  2. In water cycle Rate of synthesis and breakdown is-------.

equal

  1. Mesosphere called as “-------”.

near space

  1. Animals use --------- to make organic molecules

chemical bond

energy

  1. Which Microparasites: reproduce inside host

Bacteria

  1. Asian Tiger Mosquito Can be a vector for a virus for --------- disease.

West Nile

  1. Polar aurora is observed due to entry of solar-----.

winds

  1. ------- is key element in survival of life.
  2. Weismann made the important distinction between -------cells and ----

-cells.

Germ, somatic

Q78. Which of the following species is hunted for its fur?

Passenger pigeon

  1. The process of carbon cycle is sometimes called -------

carbon fixation

  1. Intraspecific interaction Follows logistic ------- growth curve

population

  1. Friction with atmospheric gases ------them long before they reach the

ground.in atmosphere

destroys

  1. ------- bacteria perform Denitrification

Facultative anaerobic

  1. In Third Atmosphere Inflow and outflow of CO2 from ------ continental

carbonate stores

large

  1. A ----- rapidly changes its color.

Chameloen

  1. There are Lower mortality in adults in survivorship curve

Type iii

  1. is the slowest cycle

Phosphorus cycle

  1. Lagoons Stabilization Ponds are ------ feet deep

3-5’

  1. swallows and pink fairy armadillos are ----

Insectivores

  1. --------of global fresh water use in agriculture

69% to 90%

  1. ------ near the surface, however, harmful to life

Ozone

  1. Batesian Mimicry Mimics usually ----- than models

smaller

  1. Appearance of an animal that warns predators it is toxic, distasteful

or dangerous.

Aposematism

  1. In Mutualism both individuals get ------

benefit

Q94. Which is not the effect of fragmentation?

Genetic drift is

decreased.

  1. ------ are sensitive to UV, indirectly affecting crops

Cyanobacteria

  1. ------ of human body is carbon by weight.

20%

  1. In large forests, an enormous amount of water will ------ through

leaves.

transpire

  1. Evidences of evolution are based upon following EXCEPT

Immunology

  1. k-selected species are Typically are ----- competitors in such

crowded habitats.

strong

100 Oxygen was produced ---- billion year ago.

2.5

101 Troposphere make 99% of the total ------ of water vapor and aerosols mass

102 12 to 50 km layer of atmosphere is ----

103 ------ Simplified abstractions of real food webs, but complex in their

dynamics

104 It has a half life of 15 year

Dichlorodi

phenyltrichloroethane

105 ----- are worst affected due to their edges.

Plants

106 Sometimes species cannot utilize their ----- niche.

entire

107 Humans are ----- species

108 Tropical deforestation is responsible for approximately ------ of world

greenhouse gas emissions.

20%

109 It has two phase

Exponential Growth

110 These stage from a foraging cycle-----

111 Camouflage also known as ------

Cryptic coloration

112 Transparency more efficient in

deeper water

113 An ---- species becomes invasive when it becomes established in its new

environment and out competes native species

exotic

114 ---- is produced as result of lightening.

Nitric acid

115 The shape of type II survivorship curve is ----

diagonal

116 Female ----- enters via ostiole and oviposits in female flowers

wasp

117 The ----- located directly above the thermosphere.

exosphere

118 -----density populations may attract predators who wouldn’t bother with a

sparser population.

High

119 ----- is useful tool to distinguish atmospheric layers

Temperature

  1. 120 . HMS Beagle set sail on December 27, 1831 on a ----- voyage.

5-year

121 Each successional stage is called a -------

seral stage

122 animal wastes, plant residues have -------- BOD

high

123 ------ water holds less DO than cold water

Warm

124 Chemicals that contain carbon atoms are called

Organic Compounds

125 Third Atmosphere Reduces the amount of ------- in the atmosphere

oxygen

126 Zebra Mussel Accidentally introduced to the Great Lakes in ------ 1988.

127 A ------ Feeds on plants such as grasses, soft flowering plants (forbs) and

algae

Grazers

128 Genetic code of ----- is universal.

mRNA

129 Invertebrates predator are such as

jelly fish

130 Ticks and mites are the example of…..

Ectoparasites

131 Removal of the top -------can alter the food web dynamics

predator

132 Which of these Native to the Pacific Ocean

Lionfish

133 They can breakdown Carbohydrate Anaerobically also

bacteria

134 Extinct hippopotamus like animal, now called

Toxodon

135 Disjunct Distribution occur due to following barriers except

Chemical

136 In the process of bacteria. release compounds such as cadaverine and

putrescine causing decaying odor

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