Ecosystem Test

Result

Ecosystem Test - 65

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

Which of these basic processes are constantly occurring in an ecosystem?

A
Energy flow and storage of energy

B
Storage of energy and release of energy

C
Photosynthesis and storage of energy

D
Energy flow and nutrient cycle
Question 2
1 / -0

Net primary productivity is defined as?

A
Total amount of food stored by producers

B
Maximum available biomass of heterotroph consumption

C
Total amount of food stored by plants after herbivore consumption

D
Rate of formation of new organic matter by consumers

Solution

The net primary productivity is defined as the total amount of food or biomass produced by produced by primary producers excluding energy losses that is total amount of food stored by producers. It is the total amount of biomass created by producers after energy losses in metabolism factors are excluded.
Question 3
1 / -0

Pyramid of Biomass indicates?

A
Biotic potential

B
Standing crop

C
Standing state

D
Productivity
Solution
- A pyramid of biomass is a graphical representation of the total amount of living matter present at each trophic level of an ecosystem, which is termed as standing crop. It can be upright or inverted.
- It is upright in grasslands and forest ecosystems as the amount of biomass present at the producer level is higher than at the top carnivore level. The pyramid of biomass is inverted in a pond ecosystem as the biomass of fishes far exceeds the biomass of zooplankton (upon which they feed).
- Pyramid of number shows biotic potential of a ecosystem. The number of members of any particular species in favourable conditions is called their biotic potential.
So, the correct option is 'Standing crop'.
Question 4
1 / -0

The rate at which new tissues are formed in producers in the ecosystem:-

A
NPP

B
GPP

C
Net secondary productivity

D
Gross secondary productivity

Solution

The rate at which new tissues are formed in producers in the ecosystem is known as the net secondary productivity. It is basically the energy assimilated from the food consumed, that is the water and the minerals taken up from the soil minus the energy lost as feces and the energy consumed during respiration.
So, the correct answer is 'Net secondary productivity'.
Question 5
1 / -0

In Grassland ecosystem, pyramid is upright type for?

A
Number

B
Biomass

C
Energy

D
All are upright pyramids

Solution

Pyramid of numbers in meadow Ecosystem. In a prairie biological community, the quantity of makers (chiefly grasses) is constantly greatest, trailed by diminishing numbers at second trophic dimension (herbivores), third trophic dimension (carnivores) and slightest number of zenith predators. In this way, a pyramid of numbers in a meadow is upstanding.
So, the correct option is 'Number'.
Question 6
1 / -0

Maximum Reproduction capacity is shown by?

A
Pyramid of number

B
Pyramid of Biomass

C
Pyramid of energy

D
Both $$1$$ and $$2$$ above

Solution

A "pyramid of numbers" demonstrates graphically the number of inhabitants in each dimension in a natural pecking order. It is an upstanding pyramid given in an environment, where for the most part the makers are more in number than some other Trophic dimension. This demonstrates the number of life forms in each trophic dimension with no thought for their size.
So, the correct option is 'Pyramid of a number'.
Question 7
1 / -0

In an area undergonle process of succession, which community has highest rate of organic matter storage after consumption of heterotrophs:-

A
W

B
X

C
Y

D
Z

Solution

The species or the group of species that occupy an area in the initial stages of primary succession is commonly called the pioneer species. The pioneer community has the highest rate of organic matter storage after consumption of heterotrophs.
So, the correct answer is 'W'.
Question 8
1 / -0

A drop of water is an example of :-

A
Micro ecosystem

B
Macro ecosystem

C
Nano ecosystem

D
Both B & C

Solution

A drop of water is an example of nano ecosystem. Nano-ecosystems are smaller ecosystems that are specially contained within larger ecosystems but have individual characteristics. It is part of mega ecosystem.
So, the correct option is 'macro ecosystem'.
Question 9
1 / -0

During succession(from pioneer to climax community) NCP(Net Community Productivity) __________ .

A
Decrease

B
Increase

C
First increase then decrease

D
Constant

Solution

The net community productivity is the difference between gross primary productivity and community respiration .
So the correct answer is ' C ' .
Question 10
1 / -0

Identify the biogeochemical cycle shown in the above figure?

A
Oxygen cycle

B
Nitrogen cycle

C
Nitrogen fixation cycle

D
Carbon cycle

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Ecosystem Test - 65

Result

Ecosystem Test - 65

Score

-

Rank

-

SHARING IS CARING

Question 1

Energy flow and storage of energy

Storage of energy and release of energy

Photosynthesis and storage of energy

Energy flow and nutrient cycle

Question 2

Total amount of food stored by producers

Maximum available biomass of heterotroph consumption

Total amount of food stored by plants after herbivore consumption

Rate of formation of new organic matter by consumers

Solution

Question 3

Biotic potential

Standing crop

Standing state

Productivity

Solution

Question 4

NPP

GPP

Net secondary productivity

Gross secondary productivity

Solution

Question 5

Number

Biomass

Energy

All are upright pyramids

Solution

Question 6

Pyramid of number

Pyramid of Biomass

Pyramid of energy

Both $$1$$ and $$2$$ above

Solution

Question 7

W

X

Y

Z

Solution

Question 8

Micro ecosystem

Macro ecosystem

Nano ecosystem

Both B & C

Solution

Question 9

Decrease

Increase

First increase then decrease

Constant

Solution

Question 10

Oxygen cycle

Nitrogen cycle

Nitrogen fixation cycle

Carbon cycle

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.