Sunday, January 17, 2021

Organisms and Population Top 10 questions NEET/OUAT/ICAR Question 2021 -...

ORGANISM AND POPULATION TOP 10 QUESTIONS - BIOLOGY ADDA BY KAIBALYA

   TOP 10 QUESTIONS ORGANISM AND POPULATION


 1.Carnivarous animal lions and leopards occupy the same niche but lion predate only larger animals and leopard takes smaller one . This mechanism of competition refers to as (ODISHA 2019)-

 a)Character displacement

 b)Altruism

 c)Resource partioning

 d)Competitive exclusion


2.Natality refers to (2018)-

 a)Birth rate

 b)Death rate

 c)Number of individual leaving the habitat

 d)Number of individual entering the habitat


3.Pneumatophores occurs in (2018)-

 a)Halophyte

 b)Free floating hydrophyte

 c)Carnivarous Plant

 d)Submerged hydrophyte


4.Niche is (2018)-

 a)All the biological factor in the organism environment

 b)The physical space where organism lives

 c)The range of temp that organism needs to live

 d)The functional role played by the organism where it lives


5. Between which among the following relationship is not an example of commensalism-

 a)Orchid and the tree which it grows

 b)Cattle egret and grazzing cattle

 c)Sea anemone and clwon fish

 d)Female wasp and fig species 


6.In a growing population of a country -

 a)Pre reproductive individual are more than the reproductive individuals 

 b)Reproductive individual are less than the post reproductive individuals 

 c)Reproductive = pre reproductive

 d)Pre reproductive < Reproductive 


7.Which one of the following plants show a very close relationship with a species of moth where none of the two can complete it's life cycle without the other -

 a)Hydrilla 

 b)Yucca

 c)Banana

 d)Viola


8.Which of the population interaction is widely used in medical science for production of antibiotics -

 a)Commensalism

 b)Mutualism 

 c)Parasitism

 d)Ammensalism 


9.Asymptote in a logistic growth curve is obtained when 

 a)K=N

 b)K>N

 c)K<N

 d)Value of r approches to 0


10.Plant which produce characterstics Pneumatophore and show vivipary belong to -

 a)Halophytes

 b)Psammophytes

 c)Hydrophytes

 d)Mesophytes 


ANSWERS - 

1.C

2.A

3.A

4.D

5.D

6.A

7.B

8.D

9.A

10.A

  

Wednesday, January 6, 2021

PLANT KINGDOM DPP NCERT BIOLOGY ADDA BY KAIBALYA - NEET/ICAR/OUAT 2021

                                        PLANT KINGDOM DPP



1.Aritificial system of classification was based on -

  a)Vegetative characters

  b)Androecium structure

  c)Habit and habitat

  d)All of these


ANSWER - All of these (D) 


2.__________ system classification system based upon evolutionary relationship.

  a)Natural

  b)Artificial

  c)Phylogenetic

 d)All of the above


ANSWER - Phylogenetic (C)


3.The sporophytic phase in funaria is well developed and composed of - 

  a)Capsule only

  b)Spore sac

  c)Foot and capsule

  d)Foot , seta , capsule


ANSWER - Foot , seta , capsule


4.Peat obtained from sphagnum are used as

 a)fuel

 b)Manure

 c)Corrosive

 d)Both a and b


ANSWER - Both A and B


5.Gametophyte generation is dominant in -

  a)Gymnosperm

  b)Angiosperm

  c)Bryophyte

  d)Pteridophyte


ANSWER - Bryophyte(C)


6.Types of reproduction in volvox

  a)Isogamous

  b)Anisogamous

  c)Oogamous 

  d)All 


ANSWER - Oogamous (C)


7.Phycoerythrin is found in -

  a)Euglena

  b)Polysiphonia

  c)Chlmydomonas 

  d)Fucus


ANSWER - Polysiphonia (B)


8.Haplodiplontic lifecycle is found in -

  a)Bryophyte

  b)Pteridophyte

  c)Fungi

  d)Both a and b


ANSWER - Both a and b (D)


9.Laminarin and mannitol the reserve food of brown algae-

  a)Lipids

  b)Proteins 

  c)Complex carbohydrates

  d)Lipo proteins


ANSWER - Complex carbohydrates (C)


10.Asexual reproduction in liverwort takes place by - 

  a)Fragmentation

  b)Gemme formation

  c)Spore formation

  d)None 


ANSWER - Fragmentation(A)

 KAIBALYA NAYAK . ALL THE BEST.

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