Question 1

The development of a bare area without any life form is called

Accepted Answer

A)  nudation
B)  ecesis
C)  sere
D)  reaction A

Question 2

Organisms having the potential for interbreeding and producing fertile offspring is called

Accepted Answer

A)  Class
B)  Order
C)  Genus
D)  Species D

Question 3

The order of succession in a hydrosere is

Accepted Answer

A)  Rooted aquatic plants-> phytoplankton->Free floating stage->Reedswamp stage->Sedge Meadow stage-> wood land stage-> Climax forest
B)  Rooted aquatic plants-> phytoplankton->Free floating stage-> SedgeMeadow stage-> Reed swamp stage-> wood land stage-> Climax forest
C)  phytoplankton->Rooted aquatic plants->Free floating stage->Reedswamp stage-> wood land stage-> Sedge Meadow stage-> Climax forest
D)  phytoplankton->Rooted aquatic plants->Free floating stage->Reedswamp stage->Sedge Meadow stage-> wood land stage-> Climax forest D

Question 4

The pyramid of numbers is inverted in the case of

Accepted Answer

A)  parasitic food chain
B)  Grassland ecosystem
C)  Forest ecosystem
D)  lake ecosystem

Question 5

The pyramid of energy in terrestrial ecosystem is

Accepted Answer

A)  upright
B)  inverted
C)  spindle shaped
D)  irregular

Question 6

The pyramid of numbers in a single tree is

Accepted Answer

A)  upright
B)  inverted
C)  spindle shaped
D)  none of these

Question 7

The order of succession in a lithosere or xerosere is

Accepted Answer

A)  Foliose lichen stage->Crustose lichen stage->moss stage->herb stage->shrub stage->forest stage (climax community) 
B)  Crustose lichen stage->Foilose lichen stage->moss stage->herb stage->shrub stage->forest stage (climax community) 
C)  Moss stage ->Foilose lichen stage-> Crustose lichen stage ->herbstage->shrub stage->forest stage (climax community) 
D)  Crustose lichen stage->Foilose lichen stage->moss stage-> ->shrubstage-> herb stage->forest stage (climax community)

Question 8

Succession initiated on large sand deposits or deserts is called

Accepted Answer

A)  hydrosere
B)  psammosere
C)  xerosere
D)  oxylosere

Question 9

All the statements are correct regarding ecological succession except

Accepted Answer

A)  It is a random process
B)  Species diversity increases as succession proceeds
C)  The food chain relationships becomes more complex
D)  The role of decomposers becomes more and more important

Question 10

The conversion of a pond to a climax forest community is an example of

Accepted Answer

A)  xerarch succession
B)  mesarch succession
C)  hydrarch succession
D)  all of these

Question 11

The intermediate developmental stages in the ecological succession is called

Accepted Answer

A)  sere
B)  ecesis
C)  climax
D)  nudation

Question 12

The process of successful establishment of the species in a new area is called

Accepted Answer

A)  sere
B)  climax
C)  invasion
D)  ecesis

Question 13

In grassland ecosystem, the pyramid of biomass is

Accepted Answer

A)  upright
B)  inverted
C)  spindle shaped
D)  none of these

Question 14

In pond ecosystem, the pyramid of biomass is

Accepted Answer

A)  upright
B)  inverted
C)  spindle shaped
D)  none of these

Question 15

The formation of a climax community from an abandoned farm land is a an example of

Accepted Answer

A)  Autogenic succession
B)  allogenic successsion
C)  primary succession
D)  secondary succession

Question 16

A graphic representation of number of individuals of different species belonging to each trophic level in a an ecosystem is known as

Accepted Answer

A)  ecological pyramid
B)  pyramid of biomass
C)  pyramid of number
D)  pyramid of energy

Question 17

Which of the following ecological pyramid is always upright?

Accepted Answer

A)  Pyramid of energy
B)  Pyramid of number
C)  Pyramid of biomass
D)  none of these

Question 18

The pioneers in xerach succession is the

Accepted Answer

A)  crustose lichen
B)  mosses
C)  foliose lichen
D)  shrubs

Question 19

The concept of ecological pyramid was first proposed by

Accepted Answer

A)  E.P. Odum
B)  A.G. Tansley
C)  Juday
D)  Charles Elton

Question 20

A group of individuals of a plant or animal species, inhabiting a given area is called

Accepted Answer

A)  Biome
B)  Population
C)  Ecosystem
D)  Community

Exam 2: Ecological Succession and Pyramid Structures

The development of a bare area without any life form is called

Organisms having the potential for interbreeding and producing fertile offspring is called

The order of succession in a hydrosere is

The pyramid of numbers is inverted in the case of

The pyramid of energy in terrestrial ecosystem is

The pyramid of numbers in a single tree is

The order of succession in a lithosere or xerosere is

Succession initiated on large sand deposits or deserts is called

All the statements are correct regarding ecological succession except

The conversion of a pond to a climax forest community is an example of

The intermediate developmental stages in the ecological succession is called

The process of successful establishment of the species in a new area is called

In grassland ecosystem, the pyramid of biomass is

In pond ecosystem, the pyramid of biomass is

The formation of a climax community from an abandoned farm land is a an example of

A graphic representation of number of individuals of different species belonging to each trophic level in a an ecosystem is known as

Which of the following ecological pyramid is always upright?

The pioneers in xerach succession is the

The concept of ecological pyramid was first proposed by

A group of individuals of a plant or animal species, inhabiting a given area is called