Biology Topic-wise Test - 7


90 Questions MCQ Test NEET Mock Test Series & Past Year Papers | Biology Topic-wise Test - 7


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This mock test of Biology Topic-wise Test - 7 for NEET helps you for every NEET entrance exam. This contains 90 Multiple Choice Questions for NEET Biology Topic-wise Test - 7 (mcq) to study with solutions a complete question bank. The solved questions answers in this Biology Topic-wise Test - 7 quiz give you a good mix of easy questions and tough questions. NEET students definitely take this Biology Topic-wise Test - 7 exercise for a better result in the exam. You can find other Biology Topic-wise Test - 7 extra questions, long questions & short questions for NEET on EduRev as well by searching above.
QUESTION: 1

The masses of Bacteria associated with fungal filament to form meshlike structure called as

Solution:

The masses of bacteria associated with fungal filament to form a mesh like structure is called flocs. Flocs also help in the treatment of sewage.

QUESTION: 2

BOD is measure of

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QUESTION: 3

Indian Institute of Forest management (IIFM) situated in

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QUESTION: 4
Ist basic level of Ecological studies are concerned with
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QUESTION: 5
The key element which are able to cause variation in the physical and chemical condition of different habitat will be
Solution:
QUESTION: 6
The second trophic level in a lake is
Solution:
QUESTION: 7

Secondary producers are

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QUESTION: 8
What is the percentage of photosynthetically active radiation (PAR), in the incident solar radiation
Solution:
QUESTION: 9
Which is likely to be found in the deepest water of sea
Solution: Yes correct answer is red algae because they have r-phycoerythrin help in low wavelength absorption.
QUESTION: 10
Thick walled spore - in Algae (Hypnosopre) are under categories of
Solution:
QUESTION: 11
If in a Pond there are 20 lotus plant last year and through reproduction 10 plant are added, taking the current population to 30, then Birth rate will be
Solution: Birth rate = total number of birth/ initial population
b = 10/20
=1/2
=0.5
QUESTION: 12
Verhulst Pearl logistic Growth (VPGL) can be described by
Solution:
QUESTION: 13
The two closely related species competiting for the same resource can not co-exist indefinitely it is known as
Solution:
QUESTION: 14

(+ )(0)–Relationship sign shown by

Solution:

Commensalism refers to relationship wherein one organism is benefitted while other remains unaffected and is denoted by + 0. 

Amensalism refers to association wherein one partner is inhibited while other remains nearly unaffected and is denoted by - 0. 

Association of organisms which benefits one of the partners at the expense of other is called as parasitism and is denoted by + -. 

Mutualism is association of organisms wherein both are benefitted and is denoted by + +. 

QUESTION: 15
Pyramid of Biomass in deepwater bodies just like
Solution: Pyramid of biomass in aquatic ecosystem is inverted as phytoplankton (producer-trophic level )have very less mass as compared to fishes & other aquatic animals ...and pyranid of number of tree ecosystem is also inverted in shape as at producer trophic level that is "tree" is one in number and other trophic level insects, birds are more in number thats why its pyamid in inverted in shape.
QUESTION: 16
“Reed-swamp stage”-represented by
Solution:
QUESTION: 17
In “Species-Area-Relationship” value of Z-lies in between (Regard less of taxa)
Solution:
QUESTION: 18
“Rivet - popper hypothesis” - put forward by
Solution: Rivet popper hypothesis is given by Paul Ehrlich it is basically for the key stone species he is taken the example of an commerical plane that if u remove all rivets from the plane like from seats , or window glass it doesn't affect the palne that much but if u remove a single rivet from the wings of the palne it surely affect the flight , further cause dis balance to the flight or even crash . similarly if one key Stone species remove from the environment it will cause greater habitat destruction as compare to normal species...
QUESTION: 19
WSSD held in 2002 in
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QUESTION: 20
“Accelerated Eutrophication” caused by
Solution:
QUESTION: 21
Montreal Protocol-was signed in 16 sep. 1987, at montreal (Canada) related with
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QUESTION: 22
Amrita Devi Bishnoi - associated with
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QUESTION: 23
PIL-stand for
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QUESTION: 24
Atomic Absorption Spectroscopy (AAS)is used to analyse
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QUESTION: 25
The major effect of discharging heated water from power plants to aquatic ecosystems is
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QUESTION: 26
An example of in-situ conservation is
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QUESTION: 27
The first Indian Biosphere Reserve was
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QUESTION: 28
“Knock-Knee syndrome”in which outward bending of legs form the knees occurs, is caused by
Solution: Fluoride toxicity under certain circumstances can lead to osteoporosis & knock knees .High fluoride water can cause condition called fluorosis that can lead to knocked knees or bowed knees..knocked knees is also caused by severe malnutrition of both mother and child right from birth.
QUESTION: 29
In succession on bare rock surfaces the first colonizers are
Solution:
QUESTION: 30
In heterotrophic succession, in the beginning
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QUESTION: 31
Ecotone is
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QUESTION: 32
“Environmental day” is celebrated each year on
Solution:
QUESTION: 33
Assessement of environment finding out the ways and means for remedy of environmental problem and for conservation of Biodiversity so as to maintain
the balance of nature simply called as
Solution:
QUESTION: 34
“Human cornea”- is able to absorb-UV-B radiation, but not UV-A. High dose of UV-B causes
Solution:
QUESTION: 35
“Slash and burn Agriculuture” commonly practisized in
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QUESTION: 36
Keolado National Park-Rajsthan Host thousands at migratory birds comming from Siberia and other extremely cold areas, that migratory Birds migrate toward Bharatpur in
Solution:
QUESTION: 37
Archaebacteria are able to flourish in hot spring and deep sea hypothermal vents where temperature for exceed It is possible due to
Solution:
QUESTION: 38
In Human Population, growing population means
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QUESTION: 39
If you have a dense laboratry culture of Bacteria in a petridish what is the best measure to report its density
Solution:
QUESTION: 40
Mutualism a type of co-evolution because it
Solution:
QUESTION: 41
If a cuckoo lays its eggs in the nest of crow during breeding seasons then population interaction sign will be
Solution:
QUESTION: 42
For dN/dt = rN formula population growth shows
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QUESTION: 43
“Bharat -stage IV” norm must be applicable to 11 cities of in Inida at
Solution:
QUESTION: 44
“Catalytic Converter” efficiency can be reduced by use of
Solution:
QUESTION: 45
“ISO -14000” standard related with
Solution: ISO 14000 is a series of environmental management standards developed and published by the International Organization for Standardization ( ISO ) for organizations. The ISO 14000 standards provide a guideline or framework for organizations that need to systematize and improve their environmental management efforts.
QUESTION: 46

Which one was absent in the atmosphere at the time of the origin of life ?

Solution:
QUESTION: 47
Which one is incorrect ?
Solution:
QUESTION: 48
If breeding is not random, the frequencies of certain alleles may be increased. This may lead to
Solution:
QUESTION: 49
Theory of natural selection dwells on
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QUESTION: 50
Which of the following is applicable to chimpanzee as far as movement is concerned ?
Solution: Brachiating is a movement chimpanzees and gibbons use to swing from one branch to another branch by their arms. so option C is correct.
QUESTION: 51
Homo sapiens arose in
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QUESTION: 52
The most recent, or nearest and direct prehistoric ancestor of present man(Homo sapiens) was possibly
Solution:
QUESTION: 53
Dinosaurs are present in
Solution:
QUESTION: 54
The 1st amphibians animals that lived on both land and water was
Solution:
QUESTION: 55

“Gnetales” are arise from

Solution: They are Gymosperms having true vesselsso option B is corrrect.
QUESTION: 56
Natural selection can leads to
Solution:
QUESTION: 57
Change of frequency of alleles in a population would then be interpreted as resulting evolution i.e.
Solution: Disturbance in genetic equilibrium, or Hardy- Weinberg equilibrium, i.e., change of frequency of alleles in a population would then be interpreted as resulting in evolution.If the same change occurs by chance, it is called genetic drift.
QUESTION: 58
Some times the changes in allele frequency is so different in the new sample of population that they become a different species. The oroginal drifted population become founder and the dffect is called us
Solution:
QUESTION: 59
The total gene and their alleles in a population known as
Solution:
QUESTION: 60
“Single step - large mutation” known as
Solution:
QUESTION: 61
“Darwin theory” of Natural selection influenced by
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QUESTION: 62
Mutation responsible to caused
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QUESTION: 63
The key concpts of daruinion theory of Evolution are
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QUESTION: 64
Which one belong to the categories of Australion marsupials
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QUESTION: 65
Best exaple of Adaptive Radiation
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QUESTION: 66
When more than one adoptive radiation appeared to have occured in an isolated geographical area (representing different habitats), one can call this
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QUESTION: 67
During His journey Darwin went to
Solution:
QUESTION: 68
DDT resitant in masquito Anitbiotics resistant in microbes are examples of
Solution: Durable crop protection is an essential component of current and future food security. However, the effectiveness of pesticides is threatened by the evolution of resistant pathogens, weeds and insect pests. Pesticides are mostly novel synthetic compounds, and yet target species are often able to evolve resistance soon after a new compound is introduced. Therefore, pesticide resistance provides an interesting case of rapid evolution under strong selective pressures, which can be used to address fundamental questions concerning the evolutionary origins of adaptations to novel conditions. We ask: (i) whether this adaptive potential originates mainly from de novo mutations or from standing variation; (ii) which pre‐existing traits could form the basis of resistance adaptations; and (iii) whether recurrence of resistance mechanisms among species results from interbreeding and horizontal gene transfer or from independent parallel evolution. We compare and contrast the three major pesticide groups: insecticides, herbicides and fungicides. Whilst resistance to these three agrochemical classes is to some extent united by the common evolutionary forces at play, there are also important differences. Fungicide resistance appears to evolve, in most cases, by de novo point mutations in the target‐site encoding genes; herbicide resistance often evolves through selection of polygenic metabolic resistance from standing variation; and insecticide resistance evolves through a combination of standing variation and de novo mutations in the target site or major metabolic resistance genes. This has practical implications for resistance risk assessment and management, and lessons learnt from pesticide resistance should be applied in the deployment of novel, non‐chemical pest‐control methods.
QUESTION: 69
“Chiken and Egg paradox” about evolution of life can explain by
Solution:
QUESTION: 70
“Oparin” belong to
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QUESTION: 71
The 1st non-cellular form of life could have originated
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QUESTION: 72

In S.L.miller experiment gases were used

Solution:
QUESTION: 73
Which one of these is likely to have been absent in free form at the time of origin of life
Solution:
QUESTION: 74

Miller Synthesized amino acid from

Solution:
QUESTION: 75
In order to prove “oparins theory of origin of life”or to prove that proteins with are the most important constitutent of life substances formed in Primitive ocean by polymersisation of amino acid was experimentally proved by
Solution:
QUESTION: 76
In the basis of miller experiment are can say that
Solution:
QUESTION: 77
Type of energy used by miller in his “simulation experiment” was
Solution:
QUESTION: 78
Galapago islands are associated with the name of
Solution:
QUESTION: 79
Tnedril of cucurbits and Hooks of Baugenvillia are
Solution:
QUESTION: 80
Phenomenon of “Industrial melanism” demanstrat
Solution:
QUESTION: 81
Ultimate source of organic variation is
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QUESTION: 82

The ship on which Darwin was appointed as Naturalist was

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QUESTION: 83
De varies pioneered theory of mutation to explain much of evolution, material on which he has experiment was
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QUESTION: 84
Most striking example of point mutation primose is found in a disease called
Solution:
QUESTION: 85
Dinosaurs were
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QUESTION: 86
Study of fossils is called as
Solution:
QUESTION: 87
Lichens not grown is
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QUESTION: 88
Eyes of octopus and mammal shows the
Solution:
QUESTION: 89
Best example of extensive breeding of animal done by human
Solution:
QUESTION: 90
Correct statement is
Solution: C) is the correct answer.and homo erectus is ancester if man because they have cranial capacity 800-1000cc. nearly homo sapiens and they are omnivores.and also have jaw like human..they also learned the use of fire.

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