NEET Botany MCQ-116

Question No:1

Amount of CO2, absorbed by plant to produce 180 gm of glucose

(A) 216 gm
(B) 264 gm
(C) 192 gm
(D) 108 gm

Question No:2

Intermediate communities between poineer and climax xommunities are commonly called as

(A) Plant communities
(B) Biotic communities
(C) Transitory communities
(D) None

Question No:3

Last (terminal) stabilized community in plant sucession is called

(A) Serai community
(B) Ecotone
(C) Ecosere
(D) Climax community

Question No:4

When the vegetation of any region reaches climatic climax, it is

(A) Hydrophytic
(B) Mesophytic
(C) Xerophytic
(D) Lithophytic

Question No:5

Minimum diversity is found in

(A) Moss stage
(B) Climax community
(C) Pioneer community
(D) Serai community

Question No:6

When the succession occurs in a barren area that was not previously inhabited by plant, like sand dunes, seafloor, volcano lava sediments, it is called

(A) Primary succession
(B) Secondary succession
(C) Alogenic
(D) Ecological succession

Question No:7

In ecological succession from pioneer to climax stage, the biomass shall

(A) Increase continuously
(B) Decrease
(C) Increase and then decrease
(D) No relation

Question No:8

According to Millennium Ecosystem Assessment ecosystem services are grouped into this many categories

(A) 3
(B) 2
(C) 4
(D) 5

Question No:9

One of the following is not a supporting ecosystem services

(A) Nutrient cycling
(B) Oxygen production
(C) Soil formation
(D) Climate regulation

Question No:10

Ecosystem services such as education, recreation and aesthetic value comes under this category

(A) Regulating services
(B) Supporting services
(C) Cultural services
(D) Provisioning services

Question No:11

Identify the correct statement

(A) cost of soil formation account for about 10 percent.
(B) food, fibre are regulating services.
(C) Recreation and nutrient cycling accounts for less than 10 percent
(D) water purification and food production are supporting services.

Question No:12

The most important pollinator for agricultural purposes is

(A) Flies
(B) Mosquitoes
(C) Cockroaches
(D) Honeybees

Question No:13

To produce 1gm dry organic matter the amount of CO2 fixed is

(A) 1.98 gm
(B) 20 gm
(C) 1.63 gm
(D) 40 gm

Question No:14

Natural ecosystem may have helped to stabilize climate and prevent overheating of the Earth by removing more of

(A) The green house gases from atmosphere
(B) CO2 from the atmosphere
(C) Ground water
(D) (a) and (b)

Question No:15

The purpose of developing a carbon tax system in many countries is to

(A) reduce green house gases
(B) cut down CO2 in atmosphere
(C) cut down CO in atmosphere
(D) All the above