Which option shows correctly matched pairs for Column - I and Column -II? Column I Column II i) Amensalism P) Beneficial to one, detrimental to other. ii) Predation Q) Beneficial to both. iii) Commensalism R) Detrimental to one, unaffected for other. iv) Mutualism S) Beneficial to one, neutral for other.

(i - R) (ii - P) (iii - S) (iv - Q)

(i - R) (ii - P) (iii - Q) (iv - S)

(i - R) (ii - S) (iii - Q) (iv - P)

(i - P) (ii - R) (iii - Q) (iv - S)

Select the sentence which explains the best parasitism:

One organism is benefited, other is affected.

Both the organisms are benefited.

Both the organisms are affected.

One organism is benefited, other is not affected.

Eurythermal means ____.

Some organisms can tolerate and thrive in a wide range of temperatures

Some organisms are restricted to a narrow range of salinities

Some organisms are tolerant of a wide range of salinities

Some organisms can tolerate and thrive in a narrow range of temperatures

Which option shows correctly matched pairs for Column - I and Column -II? Column I Column II i) Amensalism P) Beneficial to one, detrimental to other. ii) Predation Q) Beneficial to both. iii) Commensalism R) Detrimental to one, unaffected for other. iv) Mutualism S) Beneficial to one, neutral for other.

(i - R) (ii - P) (iii - S) (iv - Q)

(i - R) (ii - P) (iii - Q) (iv - S)

(i - R) (ii - S) (iii - Q) (iv - P)

(i - P) (ii - R) (iii - Q) (iv - S)

E M B I B E

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 13 - Organisms and Populations>Gujarat Board-2020>Q 11

EASY

12th Gujarat Board

IMPORTANT

Earn 100

Explain population growth.

Important Questions on Organisms and Populations

HARD

12th Gujarat Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 13 - Organisms and Populations>Gujarat Board-2018>Q 1

What is the size of animals belonging to mesofauna?

HARD

12th Gujarat Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 13 - Organisms and Populations>Gujarat Board-2018>Q 2

A =

\frac{B i r t h r a t e}{D e a t h r a t e} \times 100

, What is "A"?

MEDIUM

12th Gujarat Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 13 - Organisms and Populations>Gujarat Board-2019>Q 3

It is an example of an animal that develop accessory respiratory organs to utilise atmospheric air when fresh water dries up.

HARD

12th Gujarat Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 13 - Organisms and Populations>Gujarat Board-2019>Q 4

If any population has an equal birth rate and death rate then its age pyramid is X , vital index is Y and the population is Z .

MEDIUM

12th Gujarat Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 13 - Organisms and Populations>Gujarat Board-2019>Q 5

What does 'X' represent in the given diagram?

Question Image

MEDIUM

12th Gujarat Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 13 - Organisms and Populations>Gujarat Board-2019>Q 6

Which option shows correctly matched pairs for Column - I and Column -II?

	Column I		Column II
i)	Amensalism	P)	Beneficial to one, detrimental to other.
ii)	Predation	Q)	Beneficial to both.
iii)	Commensalism	R)	Detrimental to one, unaffected for other.
iv)	Mutualism	S)	Beneficial to one, neutral for other.

EASY

12th Gujarat Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 13 - Organisms and Populations>Gujarat Board-2020>Q 7

Many members of genus _____ form Mycorrhiza.

MEDIUM

12th Gujarat Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 13 - Organisms and Populations>Gujarat Board-2020>Q 8

The formula of population density is:

Learn and Prepare for any exam you want !

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