NEET Botany MCQ-115

Question No:1

An orderly sequence of community development on an area is called

(A) Succession .
(B) Cover
(C) Establishment
(D) Diversity

Question No:2

The terminal stage of a successional process is called

(A) Final stage
(B) Climax stage
(C) Serai stage
(D) Pioneer stage

Question No:3

If the pioneer stage is dominated by autotrophs then the succession is called

(A) Allogenic
(B) Autogenic
(C) Autotrophic
(D) Heterotrophic

Question No:4

Which is not a characteristic of serai stages ?

(A) Simplified food chain
(B) Few and generalized niches
(C) Low net community productivity (NCP)
(D) Low energy use efficiency

Question No:5

The serial changes in previously sterile or total barren area are collectively called

(A) Climatic climax
(B) Secondary succession
(C) Primary succession
(D) Sere

Question No:6

A community that is in near equilibrium with the environment during ecological sucession is

(A) Trophic level
(B) Food chain
(C) Climax community
(D) Food web

Question No:7

In the successive serai stages there is a change in the

(A) Diversity of species of organisms
(B) Number of species of organisms
(C) Increase of total biomass
(D) All the above

Question No:8

Sucession starts on the large rock is called

(A) Secondary succession
(B) Primary succession
(C) Climax community
(D) Ecological pyramid

Question No:9

Researchers like Robert Constanza et. al, have put an average price tag of US $ …. Trillion a year on the fundamental ecological services

(A) 33
(B) 50
(C) 6
(D) 40

Question No:10

Succession stages that occur in salt marshes is called

(A) Psammosere
(B) Halosere
(C) Lithosere
(D) Hydrosere

Question No:11

Plant succession taking place in sandy area is

(A) halosere
(B) xerosere
(C) lithosere
(D) psammosere

Question No:12

During the process of ecological succession

(A) Species diversity decreases
(B) Structural complexity decreases
(C) Niche become specialised
(D) Food chain relationship becomes simple

Question No:13

Lichens and mosses are observed in

(A) hydrosere
(B) xerosere
(C) hydrarch succession
(D) psammosere

Question No:14

Researchers like Robert Constanza et, al. have put an average price tag of US$ ——— trillion a year on the fundamental ecological services

(A) 33
(B) 50
(C) 6
(D) 18

Question No:15

The nature of climax community ultimately depends on

(A) climate
(B) soil organism
(C) bed rock
(D) pool of available nutrients

Question No:16

A community that starts the process of succession in a habitat is called

(A) pioneer community
(B) abiotic community
(C) biotic community
(D) none of these

Question No:17

Primary succession refers to the development of communities on a

(A) pond freshly filled with water after a dry place
(B) freshly cleared crop field
(C) newly exposed habitat with no record of earlier vegetation
(D) forest clearing after devastating fire

Question No:18

In succession, complexities in structure

(A) drastically increase
(B) slowly increase
(C) does not increase
(D) remain constant

Question No:19

Find out the correct order of succession levels in xerarch.

(A) lichen moss stage, annual herb stage, perennial herb stage, shrub stage, forest
(B) annual herb stage, perennial herb stage, lichen moss stage, shrub stage, forest
(C) perennial herb stage, annual herb stage, lichen moss stage, shrub stage, forest
(D) shrub stage, forest, annual herb stage, perennial stage, lichen moss stage

Question No:20

Succession is

(A) orderly process of community change till stability
(B) gradual, convergent directio.nal and continuous process
(C) series of biotic communities that appear gradually in a barren area
(D) all of the above