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Chapter 6: Principles of Ecology
- Online Test
Chapter 6: Principles of Ecology
TEST : 2
# Chapter 6: Principles of Ecology
# TN 12th Botany
Prepare / Learn
Q1.
The plant of this group are adapted to live partly in water and partly above substratum and free from water
A.
Xerophytes
B.
Mesophytes
C.
Hydrophytes
D.
Halophytes
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Answer :
Option D
Explaination / Solution:
No Explaination.
# Chapter 6: Principles of Ecology
# TN 12th Botany
Prepare / Learn
Q2.
Identify the A, B, C and D in the given table
A.
A-(+), B-Parasitism, C- (-), D- Amensalism
B.
A- (-), B-Mutalism, C- (+), D- Competition
C.
A- (+), B-Competition, C- (0) , D- Mutalism
D.
A- (0) , B-Amensalism, C- (+), D- Parasitism
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Answer :
Option A
Explaination / Solution:
No Explaination.
# Chapter 6: Principles of Ecology
# TN 12th Botany
Prepare / Learn
Q3.
Ophrys an orchid resembling the female of an insect so as to able to get pollinated is due to phenomenon of
A.
Myrmecophily
B.
Ecological equivalents
C.
Mimicry
D.
None of these
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Answer :
Option C
Explaination / Solution:
No Explaination.
# Chapter 6: Principles of Ecology
# TN 12th Botany
Prepare / Learn
Q4.
A free living nitrogen fixing cyanobacterium which can also form symbiotic association with the water fern Azolla
A.
Nostoc
B.
Anabaena
C.
chlorella
D.
Rhizobium
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Answer :
Option B
Explaination / Solution:
No Explaination.
# Chapter 6: Principles of Ecology
# TN 12th Botany
Prepare / Learn
Q5.
Pedogenesis refers to
A.
Fossils
B.
Water
C.
Population
D.
Soil
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Answer :
Option D
Explaination / Solution:
No Explaination.
# Chapter 6: Principles of Ecology
# TN 12th Botany
Prepare / Learn
Q6.
Mycorrhiza promotes plant growth by
A.
Serving as a plant growth regulators
B.
Absorbing inorganic ions from soil
C.
Helping the plant in utilizing atmospheric nitrogen
D.
Protecting the plant from infection
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Answer :
Option B
Explaination / Solution:
No Explaination.
# Chapter 6: Principles of Ecology
# TN 12th Botany
Prepare / Learn
Q7.
Which of the following plant has a non-succulent xerophytic and thick leathery leaves with waxy coating
A.
Bryophyllum
B.
Ruscus
C.
Nerium
D.
Calotropis
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Answer :
Option C
Explaination / Solution:
No Explaination.
# Chapter 6: Principles of Ecology
# TN 12th Botany
Prepare / Learn
Q8.
In a fresh water environment like pond, rooted autotrophs are
A.
Nymphaea and typha
B.
Ceratophyllum and Utricularia
C.
Wolffia and pistia
D.
Azolla and lemna
View Solution
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Answer :
Option A
Explaination / Solution:
No Explaination.
# Chapter 6: Principles of Ecology
# TN 12th Botany
Prepare / Learn
Q9.
Match the following and choose the correct combination from the options given below:
A.
I:i, II:ii, III:iii, IV:iv, V:v
B.
I:ii, II:iii, III: iv, IV:v, V:i
C.
I:iii, II:iv, III: v, IV:i, V:ii
D.
I:iv, II:iii, III: ii, IV:v, V:i
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Answer :
Option D
Explaination / Solution:
No Explaination.
# Chapter 6: Principles of Ecology
# TN 12th Botany
Prepare / Learn
Q10.
Strong, sharp spines that get attached to animal’s feet are found in the fruits of
A.
Argemone
B.
Ecballium
C.
Heritier
D.
Crossandra
View Solution
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Answer :
Option A
Explaination / Solution:
No Explaination.
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