TN State Board Samacheer Kalvi Online Test for 11th Std - Bio Botany - English - Principles of Ecology

Question 1 Of 10

Which of the given plant produces cardiac glycosides?

Calotropis Nepenthes Acacia Utricularia

Question 2 Of 10

Ecology is the study of an individual species is called

i only ii only i and iv only ii and iii only

Question 3 Of 10

The plant of this group are adapted to live partly in water and partly above substratum and free from water

Xerophytes Mesophytes Hydrophytes Halophytes

Question 4 Of 10

Arrange the correct sequence of ecological hierarchy starting from lower to higher level.

Individual organism → Population Landscape → Ecosystem Landscape → Ecosystem → Biome → Biosphere Community → Ecosystem → Landscape → Biome Community → Ecosystem → Landscape → Biome

Question 5 Of 10

Ophrys an orchid resembling the female of an insect so as to able to get pollinated is due to phenomenon of

Myrmecophily Ecological equivalents Mimicry None of these

Question 6 Of 10

Mycorrhiza promotes plant growth by

Serving as a plant growth regulators Absorbing inorganic ions from soil Helping the plant in utilizing atmospheric nitrogen Protecting the plant from infection

Question 7 Of 10

Read the given statements and select the correct option.

Both statements A and B are incorrect. Statement A is correct but statement B is incorrect. Both statements A and B are correct but statement B is not the correct explanation of statement A. Both statements A and B are correct and statement B is the correct explanation of statement A.

Question 8 Of 10

In soil water available for plants is

gravitational water chemically bound water capillary water hygroscopic water

Question 9 Of 10

Read the given statements and select the correct option.

i, ii and iii only ii, iii and iv only i, ii and iv only ii and iii only

Question 10 Of 10

Strong, sharp spines that get attached to animal’s feet are found in the fruits of

Ar gemone Ecballium Heritier Crossandra

Tamil Nadu State Board ( Samacheer Kalvi ) Online Test based on Book Back Questions - 11th Standard Bio Botany - English Medium - Principles of Ecology

Samacheer Kalvi 11th Bio Botany - Principles of Ecology - Book Back Questions in English Medium

Question 1 Of 10

Which of the given plant produces cardiac glycosides?

Question 2 Of 10

Ecology is the study of an individual species is called

Question 3 Of 10

The plant of this group are adapted to live partly in water and partly above substratum and free from water

Question 4 Of 10

Arrange the correct sequence of ecological hierarchy starting from lower to higher level.

Question 5 Of 10

Ophrys an orchid resembling the female of an insect so as to able to get pollinated is due to phenomenon of

Question 6 Of 10

Mycorrhiza promotes plant growth by

Question 7 Of 10

Read the given statements and select the correct option.

Question 8 Of 10

In soil water available for plants is

Question 9 Of 10

Read the given statements and select the correct option.

Question 10 Of 10

Strong, sharp spines that get attached to animal’s feet are found in the fruits of

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