TN State Board Samacheer Kalvi Online Test for 12th Std - Biology - English - Organisms and Population

Question 1 Of 10

All populations in a given physical area are defined as

Biome Ecosystem Territory Biotic factors

Question 2 Of 10

Competition between species leads to

Extinction Mutation Amensalism Symbiosis

Question 3 Of 10

Identify the proper sequence in increasing order of population

Species → Population → Community → biome Population → Community → Species → biome Biome → Species → Community → Population ‘ Community → Population → Biome → Species

Question 4 Of 10

Which of the following is an r-species?

Human Insects Rhinoceros Whale

Question 5 Of 10

As altitude increases ……………….

O2 density increases Precipitation decreases Temperature increases Snowing decreases

Question 6 Of 10

What type of human population is represented by the following age pyramid?

Vanishing (a) Vanishing population Stable population Declining population Expanding population

Question 7 Of 10

Identify the incorrect statement

Water is a universal solvent Water has less surface tension Water is heavier than air When freezes water contracts

Question 8 Of 10

Assertion (A): Snake is a stenotherm.
Reason (R): Organism can tolerate narrow temperature fluctuations.

Both A and R are correct R explain A A is correct R is incorrect R does not explain A Both A and R are incorrect

Tamil Nadu State Board ( Samacheer Kalvi ) Online Test based on Book Back Questions - 12th Standard Biology - English Medium - Organisms and Population

Samacheer Kalvi 12th Biology - Organisms and Population - Book Back Questions in English Medium

Question 1 Of 10

All populations in a given physical area are defined as

Question 2 Of 10

Competition between species leads to

Question 3 Of 10

Identify the proper sequence in increasing order of population

Question 4 Of 10

Which of the following is an r-species?

Question 5 Of 10

As altitude increases ……………….

Question 6 Of 10

What type of human population is represented by the following age pyramid?

Question 7 Of 10

Identify the incorrect statement

Question 8 Of 10

Assertion (A): Snake is a stenotherm.
Reason (R): Organism can tolerate narrow temperature fluctuations.

Question 9 Of 10

Organisms which can survive a wide range of temperature are called

Question 10 Of 10

Predation and parasitism are which type of interactions?

Tags

Tamil Nadu State Board ( Samacheer Kalvi ) Online Test based on Book Back Questions - 12th Standard Biology - English Medium - Organisms and Population

Samacheer Kalvi 12th Biology - Organisms and Population - Book Back Questions in English Medium

Question 1 Of 10

All populations in a given physical area are defined as

Question 2 Of 10

Competition between species leads to

Question 3 Of 10

Identify the proper sequence in increasing order of population

Question 4 Of 10

Which of the following is an r-species?

Question 5 Of 10

As altitude increases ……………….

Question 6 Of 10

What type of human population is represented by the following age pyramid?

Question 7 Of 10

Identify the incorrect statement

Question 8 Of 10

Assertion (A): Snake is a stenotherm. Reason (R): Organism can tolerate narrow temperature fluctuations.

Question 9 Of 10

Organisms which can survive a wide range of temperature are called

Question 10 Of 10

Predation and parasitism are which type of interactions?

Tags

Assertion (A): Snake is a stenotherm.
Reason (R): Organism can tolerate narrow temperature fluctuations.