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Published on: 29/08/2022
QB365 provides a detailed and simple solution for every Possible Creative Questions in Class 12 Biology Subject - Botany - Principles of Ecology, English Medium. It will help Students to get more practice questions, Students can Practice these question papers in addition to score best marks.
Download Tamil Nadu 12th Standard Biology question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Biology Test1.
Find out the incorrect pair
Epilimnion-Upper layer
metalimnion-Middle layer
Hypolimnion-Bottom layer
Latitude-0o-190o
2.
An example for eurythermal
Zostera
Mango
Angiosperm
Palm
3.
Match the following
| (A) | 400-500nm | (1) | red |
| (B) | 600-700 nm | (2) | blue |
| (C) | 500-600 nm | (3) | violet |
| (D) | 400 nm | (4) | green |
(A) 1, (B) 2, (C) 3,(D) 4
(A) 3, (B) 4, (C) 2,(D) 1
(A) 4, (B) 3, (C) 1,(D) 2
(A) 2, (B) 1, (C) 4,(D) 3
4.
The term niche was coined by and the term was used by
Odum & Roswell Hill Johnson
Roswell Hill Johnson & Grinell
Grinell & Odum
Odum & Grinell
5.
The acceptable definition of ecology was by
Odum
Reiter
Ernst Haeckel
R. Misra
6.
Earth day is observed on
April 22nd
March 21st
July 07th
September 16th
7.
Utricularia is a __________.
Rooted floating hydrophyte
Submerged floating hydrophyte
Rooted submerged hydrophyte
Amphibious hydrophyte
8.
Assertion (A) : Plains and valleys are rich in vegetation
Reason (R): Slow drain of surface water and better water retention is noticed.
A is true R is false
R explains A
A and R are false
A and R are true. But R does not explains A
9.
Statement 1: Ephemerals are drought evaders.
Statement 2: They are not true xerophytes.
Statement 1 is correct. Statement 2 is incorrect.
Statement 1 is incorrect. Statement 2 is correct.
Both the statements are correct.
Both the statements are incorrect
10.
Statement 1: Holoparasites depend totally on other organisms for nutrition.
Statement 2: Durnta is holoparasite.
Statement 1 is correct. Statement 2 is incorrect.
Statement 1 is incorrect. Statement 2 is correct
Both the statements are correct.
Both the statements are incorrect
11.
Statement 1: Latitudes represent distance from the equator.
Statement 2: Height above the seal level from longitude.
Statement 1 is correct. Statement 2 is incorrect
Statement 1 is incorrect. Statement 2 is correct
Both the statements are correct.
Both the statements are incorrect
12.
Identify the indicators of fire.
Pucinia
Pyricularia
Pyronema
Peziza
13.
The study of soil is called as __________
Lithotripsy
Lithosphere
Pedology
Pedigree analysis
14.
The ideal soil for Cultivation is:
Loamy soil
Clayey soil
Sandy soil
Silt soil
15.
Autecology deals with the study of ___________.
Community
Population
Individual species
Niche of species
1.
(d)
Latitude-0o-190o
2.
(a)
Zostera
3.
(d)
(A) 2, (B) 1, (C) 4,(D) 3
4.
(b)
Roswell Hill Johnson & Grinell
5.
(c)
Ernst Haeckel
6.
(a)
April 22nd
7.
(b)
Submerged floating hydrophyte
8.
(b)
R explains A
9.
(c)
Both the statements are correct.
10.
(c)
Both the statements are correct.
11.
(a)
Statement 1 is correct. Statement 2 is incorrect
12.
(c)
Pyronema
13.
(c)
Pedology
14.
(a)
Loamy soil
15.
(c)
Individual species
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