the functional role played by organism where it lives

the range of temperature that the organism needs to live

the physical space where an organism lives

all the biological factors in the organism's environment

Match the following. The correct combinations are List I List II List III (a) Diapause (i) Temperature variations with seasonal changes (p) Temperature lake (b) Cyclomorphosis (ii) Light produced by living organisms (q) Insects (c) Thermal stratification (iii) Inactiveness (r) Pyrosoma (d) Bioluminescence (iv) Seasonal morphological variations (s) Daphnia

(a-iii-q), (b-iv-s), (c-i-p), (d-ii-r)

(a-iii-r), (b-iv-q), (c-i-p), (d-ii-s)

(a-i-q), (b-iv-r), (c-ii-p), (d-ii-q)

(a-ii-s), (b-iv-q), (c-i-p), (d-ii-r)

Observe the following graph of regulators In the above graph I, II and III represent

I II III Regulators Conformers Partial regulators

I II III Conformers Regulators Partial regulators

I II III Partial regulators Conformers Regulators

I II III Partial regulators Regulators Conformers

Match the following: List-1 List-2 A) Global warming B) Eutrophication C) Biomagnification D) Ozone depletion I) Mercury II) UV-B rays III) Methane IV) Algal blooms V) Terror of Bengal The correct match is:

A = III , B = IV , C = I , D = II

A = III , B = V , C = I , D = II

A = II , B = I , C = IV , D = III

A = V , B = IV , C = II , D = I

EASY

Earn 100

Which one of the following is an example of hibernation?

50% studentsanswered this correctly

Important Questions on Organisms and Populations

EASY

Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

Niche is

EASY

Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

In Amphibian and reptiles, the body temperature changes corresponding to external temperature. The organisms which show this kind of response is termed as -

EASY

Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

Light is an ecological factor that shows its influence on many biological activities like pigmentation, metabolism, etc. Cave dwellers exhibit:

MEDIUM

Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

How is green house gas raise the temperature of Earth?

EASY

Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

With reference to temperature adaptations, identify $A, B, C$ of the following graph

Question Image

EASY

Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

Match the following:

	List - 1		List -2
$A)$	Carbon monoxide	$I)$	Global warming
$B)$	Carbon dioxide	$II)$	UV - rays
$C)$	Sulphur dioxide	$III)$	Eutrophication
$D)$	Ozone depletion	$IV)$	Acid rain
		$V)$	Oxygen transport

The correct match is

MEDIUM

Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

Which ONE of the following statements about ecosystem energetics is INCORRECT?

EASY

Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

Match the following. The correct combinations are

List I		List II		List III
(a)	Diapause	(i)	Temperature variations with seasonal changes	(p)	Temperature lake
(b)	Cyclomorphosis	(ii)	Light produced by living organisms	(q)	Insects
(c)	Thermal stratification	(iii)	Inactiveness	(r)	Pyrosoma
(d)	Bioluminescence	(iv)	Seasonal morphological variations	(s)	Daphnia

MEDIUM

Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

Assertion

(A)

: In brackish water, stenohaline animals are abundant
Reason

(R)

: Brackish water animals can withstand wide fluctuations in salinity

EASY

Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

Observe the following graph of regulators

Question Image

In the above graph I, II and III represent

EASY

Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

Homeothermy in humans is maintained through

MEDIUM

Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

Identify the elements which lead to much variation in the physical and chemical conditions of different habitats.
a) Only components such as Temperature, water, light and soil.
b) Only components such as pathogens, parasites, predators and competitors of the organism with which they interact constantly.
c) The physiology and anatomy of organisms
d) Both a and b

MEDIUM

Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

Match the following

	LIST-I		LIST-II
A	Radioactive wastes	I	Global warming
B	Greenhouse effect	II	Snow blindness
C	UV — B rays	III	Biomagnification
D	DDT	IV	Mutations
		V	Eutrophication

The correct match is

EASY

Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

Which of the following pairs of gases is mainly responsible for green house effect?

HARD

Biology>Ecology and Environment>Organisms and Populations>Population and Ecological Adaptations

Match the following:

List-1	List-2
A) Global warming B) Eutrophication C) Biomagnification D) Ozone depletion	I) Mercury II) UV-B rays III) Methane IV) Algal blooms V) Terror of Bengal