Organisms and Populations Test

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Organisms and Populations Test - 11

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following statements is/are incorrect:

A
Temperature is critical to living organisms for metabolism

B
Carbon dioxide is necessary for photosynthesis

C
Human intestine cannot be considered a unique habitat

D
Organisms need adaptations to optimize their survival and reproduction in their habitat

Solution

Inside the human intestine a number of microbes lives that helps in digestion of food and formation of vitaminK. so, human intestine is also an unique habitat.
Question 2
1 / -0

Which of the following is associated with the description of life-forms in plant communities?

A
Tansley

B
Shelford

C
Slobodkin

D
Raunkiaer
Question 3
1 / -0

Organisms in a particular environment have special teeth structure, feet, body shape and body coverings. These adaptations are called

A
structural adaptations

B
ornamental adaptations

C
behavioural adaptations

D
temporary adaptations
Question 4
1 / -0

Which of the following are not true regarding hydrophytes?

A. Stomata are sunken.
B. Stem is slender and flexible.
C. Emergent forms show heterophylly.
D. Root system is either absent or poorly developed.
E. They have thick cuticle, well-developed epidermis and hypodermis.

A
A and B

B
B and C

C
C and D

D
A and E
Question 5
1 / -0

What is the advantage of velamen over epiphytic plants?

A
Photosynthesis

B
Water absorption

C
Respiration

D
Water storage
Question 6
1 / -0

Which of the following is/are poikilotherm:

A
Tapeworm and rabbits

B
Humans and fishes

C
Elephants

D
Tapeworm and naked mole rat

Solution

The organisms that can change their body temperature according to environment are called poiklotherm or cold blooded animals. Tapeworm and naked mole rat are examples of cold blooded animals.

Question 7

1 / -0

Match the following:

Relationship	Organisms
1. Mutualism	a. Mycorrhizae on the surface of plants
2. Commensalism	b. Lianas using trees for vertical support
3. Protocooperation	c. Sea anemone attached to the cells of hermit crab
4. Exploitation	d. Cattle grazing grass

1 - d, 2 - c, 3 - b, 4 - a

1 - c, 2 - d, 3 - a, 4 - b

1 - a, 2 - b, 3 - c, 4 - d

1 - d, 2 - c, 3 - a, 4 - b

Question 8
1 / -0

Biotic components of a habitat includes

A
Competitors and predators

B
Physieo-chemical components

C
Predators only

D
Competitors only

Solution

Biotic components include all living organisms present in an ecosystem. Competitors and predators are biotic components of habitat
Question 9
1 / -0

In the case of saturated air, the column of air tends to be in stable equilibrium, when the prevailing lapse rate

A
is equal to the wet adiabatic lapse rate

B
is more than the wet adiabatic lapse rate

C
is less than the wet adiabatic lapse rate

D
does not vary with the wet adiabatic lapse rate
Question 10
1 / -0

Which kind of interaction is shown by sea anemone and hermit crab?

A
Symbiosis

B
Amensalism

C
Commensalism

D
Parasitism

Question 11

1 / -0

Match List-I with List-II and select the correct option.

List-I (Biomes)	List-II (Species)
A. Coniferous forest	1. Spruce
B. Tropical rainforest	2. Rubber
C. Tropical deciduous forest	3. Sal
D. Temperate forest	4. Oak

A - 3, B - 4, C - 1, D - 2

A - 1, B - 4, C - 3, D - 2

A - 3, B - 2, C - 1, D - 4

A - 1, B - 2, C - 3, D - 4

Question 12
1 / -0

Which of the following biomes is incorrectly paired with the description of its climate?

A
Savannah - Cool temperature and uniform precipitation during the year

B
Tundra - extreme cold, permafrost and brief summer

C
Chapparal - mild and wet winters, hot and dry summer

D
Tropical - nearly constant temperature and rich varieties present here

E
Steppe - temperate biome
Question 13
1 / -0

High growth at the time of exponential phase of human population growth curve is due to

A
high birth and low death rates

B
high birth and death rates

C
low birth and high death rates

D
low birth and death rates
Question 14
1 / -0

Which of the following is an example of mutualism?

A
Crown gall

B
Lichen

C
Hypertrophy

D
None of these
Question 15
1 / -0

Examples of artificial ecosystem is/are:

A
Forest & desert

B
Grassland & aquarium

C
Only aquarium

D
Crop field & aquarium

Solution

Artificial ecosystems are man-made ecosystem. Crop field and aquarium are examples of artificial ecosystem as they are man-made.
Question 16
1 / -0

Different types of population fluctuation are

A. flat type
B. cyclic type
C. gradual type
D. seasonal type
E. annual type

A
A, B and C

B
B, C and D

C
A, B, D and E

D
A, C, D and E
Question 17
1 / -0

Recent human population growth is attributed to

A. agricultural revolution
B. genetic drift
C. industrial revolution
D. medical advances
E. altruistic behaviour

A
A, C, D and E

B
B and E

C
A, B, C and D

D
D and E
Question 18
1 / -0

Biomes are defined by

1. plant structures
2. leaf types
3. climate
4. plant spacing

Which of the above are true?

A
1, 2 and 3

B
2, 3 and 4

C
1, 3 and 4

D
1, 2, 3 and 4

Question 19

1 / -0

Match the following:

Column I	Column II
A. Mesothermic	i. Grow in a wide range of temperature, from 0 to 55°C
B. Hekisothermic	ii. Live in a narrow range of temperature, like aquatic plants
C. Eurythermic	iii. Live in neither hot nor cold climates, as in tropical rain forests
D. Stenothermic	iv. Mostly grow in alpine regions

A – iv, B – i, C – ii, D – iii

A – ii, B – iii, C – iv, D – i

A – iii, B – iv, C – i, D – ii

A – iii, B – i, C – iv, D – ii

Question 20
1 / -0

Select the mismatched pair out:

A
Hutchinson –term biome

B
Carson – silent spring

C
Tansley – ecosystem

D
Haeckel – term ecology

Solution

The term ecology, silent spring and ecosystem were coined by Haeckel, Carson and Tansley respectively. The term biome was not coined by Hutchinson.
Biome, as coined and applied by Clements, was not the ecosystem.

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Re-Attempt Weekly Quiz Competition

Organisms and Populations Test - 11

Result

Organisms and Populations Test - 11

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SHARING IS CARING

Question 1

Temperature is critical to living organisms for metabolism

Carbon dioxide is necessary for photosynthesis

Human intestine cannot be considered a unique habitat

Organisms need adaptations to optimize their survival and reproduction in their habitat

Solution

Question 2

Tansley

Shelford

Slobodkin

Raunkiaer

Question 3

structural adaptations

ornamental adaptations

behavioural adaptations

temporary adaptations

Question 4

A and B

B and C

C and D

A and E

Question 5

Photosynthesis

Water absorption

Respiration

Water storage

Question 6

Tapeworm and rabbits

Humans and fishes

Elephants

Tapeworm and naked mole rat

Solution

Question 7

1 - d, 2 - c, 3 - b, 4 - a

1 - c, 2 - d, 3 - a, 4 - b

1 - a, 2 - b, 3 - c, 4 - d

1 - d, 2 - c, 3 - a, 4 - b

Question 8

Competitors and predators

Physieo-chemical components

Predators only

Competitors only

Solution

Question 9

is equal to the wet adiabatic lapse rate

is more than the wet adiabatic lapse rate

is less than the wet adiabatic lapse rate

does not vary with the wet adiabatic lapse rate

Question 10

Symbiosis

Amensalism

Commensalism

Parasitism

Question 11

A - 3, B - 4, C - 1, D - 2

A - 1, B - 4, C - 3, D - 2

A - 3, B - 2, C - 1, D - 4

A - 1, B - 2, C - 3, D - 4

Question 12

Savannah - Cool temperature and uniform precipitation during the year

Tundra - extreme cold, permafrost and brief summer

Chapparal - mild and wet winters, hot and dry summer

Tropical - nearly constant temperature and rich varieties present here

Steppe - temperate biome

Question 13

high birth and low death rates

high birth and death rates

low birth and high death rates

low birth and death rates

Question 14

Crown gall

Lichen