Tag: ecosystem

Quizzes (20) Questions (95)

Questions Related to ecosystem

Multiple choice botany ecological adaptations, succession and ecological services ecosystem services ecosystems ecosystem

Which of the following is the natural method of hybridisation?

  1. Interspecific hybridisation

  2. Cross pollination

  3. Somatic cell hybridisation

  4. All of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Cross pollination is the transfer of pollen from the anthers of a flower of one plant to the stigma of a flower of another  plant. It is a natural process.

So, the correct answer is 'cross pollination'

Multiple choice botany ecological adaptations, succession and ecological services ecosystem services ecosystems ecosystem

Select the wrong statement. 

  1. Forest provide variety of products.

  2. Forest have great plant diversity.

  3. Forest does not conserve soil.

  4. Forest conserves water.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

It is wrong that the forest do not conserve soil. Actually forest prevent soil erosion by covering the soil by the canopy of the plants and reduces the impact of rain water and wind on the top layer of soil. The roots hold the soil and also prevent soil erosion.

So, the correct answer is 'Forest does not conserve soil'

Multiple choice botany ecological adaptations, succession and ecological services ecosystem services ecosystems ecosystem

The productive area required to produce all the resources for humanity to consume and to absorb all its waste is known as 

  1. A habitat

  2. An ecosystem

  3. An ecological footprint

  4. The biosphere

  5. The carrying capacity
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
A. A habitat is a place where an organism lives and represents a particular set of environmental conditions suitable for its successful growth.
B. An ecosystem is a whole biotic community in a given area including its abiotic environment.
C. An ecological footprint is the measurement of any productive area (land or water) that is used by the human beings to produce the resources consumed by them and absorb the waste generated.
D. The planet Earth along with its atmosphere that sustains life is called biosphere.
E. Carrying capacity is the maximum size of the population that an environment can sustain.
So, the correct answer is 'An ecological footprint'.
Multiple choice botany ecological adaptations, succession and ecological services ecosystem services ecosystems ecosystem

Which of the following describes the ecosystem services?

  1. Carbon fixation

  2. Pollination

  3. Perennial water

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Ecosystem services encompass a wide range of benefits provided by nature, including carbon fixation (climate regulation), pollination (supporting food production), and water purification/retention.

Multiple choice botany ecological adaptations, succession and ecological services ecosystem services ecosystems ecosystem

A functional aspect of an ecosystem is

  1. Producers, consumers and abiotic environment

  2. Regulation of populations

  3. Light, temperature, oxygen and carbon dioxide

  4. Both A and C
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The functional aspects of an ecosystem include the regulation of populations, flow of energy, biogeochemical cycles, and the flow of nutrients. It also includes ecological succession, food chain, ecological pyramid, food web. Populations are regulated in an ecosystem through these food chains.

Thus, the correct answer is 'Regulation of populations.'

Multiple choice botany ecological adaptations, succession and ecological services ecosystem services ecosystems ecosystem

An ecosystem does not normally alter because it is in a state of

  1. Homeostasis

  2. Imbalance

  3. Deficient light

  4. Deficient components
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Ecosystem is made up of living and nonliving things. Living things include plants and animals. Nonliving things includes air, water, land.  It is composed of organisms interacting within communities. The importance of ecosystem lies in both cycling of minerals and flow of energy. It does not alter normally because it is in a state of homeostasis. There is always balance of organisms in an ecosystem within themselves and with changing environment.

Thus, the correct answer is 'Homeostasis.'

Multiple choice botany ecological adaptations, succession and ecological services ecosystem services ecosystems ecosystem

Ecosystem creates

  1. Food chains and food web

  2. Food web

  3. Habitats

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

An ecosystem is made up of living and nonliving things. Living things include plants, animals. Nonliving things include air, water. It creates food chains and food web. A food chain is series of plants/animals which are interrelated in the form of organism being eaten as food by the other. plants are producers. The animals eating plants are called as primary consumers and animals eating primary consumers are called as secondary consumers. Decomposers are those which decomposes the waster organic matter. Food web is various interlinked food chains in a community.

Thus, the correct answer is 'Food chains and food web.'

Multiple choice botany ecological adaptations, succession and ecological services ecosystem services ecosystems ecosystem

Importance of ecosystem lies in

  1. Cycling opmaterials

  2. Flow of energy

  3. Both A and B

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Ecosystem is made up of living and nonliving things. Living things include plants and animals. Nonliving things includes air, water, land.  It is composed of organisms interacting within communities. The importance of ecosystem lies in both cycling of minerals and flow of energy. It contributes to the cycling of minerals and flow of energy.

Thus, the correct answer is 'Both A and B.'

Multiple choice botany ecological adaptations, succession and ecological services ecosystem services ecosystems ecosystem

According to Robert Constanza, 50% of the total cost of ecosystem services goes to

  1. Climate regulation

  2. Soil formation

  3. Recreation

  4. Nutrient cycling
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Robert Constanza gave price tags to ecosystem services. According to him, soil formation accounts for 50% of the ecosystem service. It is the most important ecosystem service. The other ecosystem services include purify water and air, mitigate droughts and floods, nutrient cycling, habitat for wild life.

Thus, the correct answer is 'Soil formation.'

Multiple choice botany ecological adaptations, succession and ecological services ecosystem services ecosystems ecosystem

Which one is included under ecosystem services?

  1. Protection of soil

  2. Conservation and purification of water

  3. Climate control

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The benefits which we obtain from the regulation of ecosystem processes such as climate regulation, natural hazard regulation, water purification, and waste management, pollination or pest control are known as Ecosystem services. Agroecosystems, forest ecosystems, grassland ecosystems, and aquatic ecosystems are included under these ecosystems. These are also known as regulating services. Examples include Climate regulation, Waste treatment, and disease regulation. 

So, the correct answer is 'All of the above'.