Tag: basics of ecology

Questions Related to basics of ecology

Ability of the community to come back quickly to its original form is

zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

  1. Resistance

  2. Resilience

  3. Disturbance

  4. Heterogeneity

Show answer
Correct Option: B
Explanation:

The capability to bounce back and to use physical and economic resources effectively to aid recovery following exposure to hazards can be termed as community resilience.

The major sub-divisions of biosphere are

zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

  1. Soil, water and hydrosphere

  2. Soil, atmosphere and lithosphere

  3. Atmosphere, lithosphere and hydrosphere

  4. Atmosphere, lithosphere and air

Show answer
Correct Option: C
Explanation:

The biosphere is defined as the part of Earth, which is habituated. There are different subdivisions of biosphere. These are known as -

1. Hydrosphere 
2. Lithosphere 
3. Atmosphere. 
They interact with each other and do not occur alone. They provide a crucial role in the existence of organisms.

Natural habitats that were once large and connected have become more fragmented due to human activities. Wildlife corridors between the fragments of habitat are necessary to maintain wildlife habitat and natural areas.
Which of these is a benefit of wildlife corridors?
I.Allows young adult animals to access a new range.
II. Improves genetic fitness as adult animals interact with potential mates in other areas. 

III. Allows plants and animals to colonize new habitat as the climate changes.

zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

  1. I only

  2. II only

  3. III only

  4. I and III only

  5. I, II and Ill

Show answer
Correct Option: D
Explanation:
Wildlife corridors are the areas that link wildlife habitats but are separated by human activities such as roads.
Hence, wildlife corridors between fragments of habitat will allow young adult animals to access a new range and allows plants and animals to colonize new habitat as the climate changes.
So, the correct answer is 'I and III only'.

Nektons are

zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

  1. Floating plants

  2. Swimming organisms

  3. Suspended plants

  4. Animals associated with plants

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Correct Option: B

A man-made microecosystem is

zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

  1. Plants grown in a pond

  2. Crop field

  3. Tank formed naturally in your courtyard

  4. Lake in a forest

Show answer
Correct Option: B
Explanation:

Ecosystem is made up of living and nonliving components. It is of two types, natural ecosystem and artificial ecosystem. Natural ecosystem is also called as macroecosystem. Artificial ecosystem is called as microsystem. Microecosystems can exist in locations which are precisely defined by critical environmental factors within small or tiny spaces. A man-made microecosystem is crop field. It is independent of solar energy. 

Thus, the correct answer is 'Crop field.'

Which of the following communities are more vulnerable to invasion, by outside animals and plants?

zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

  1. Tropical forests

  2. Mangroves

  3. Temperate forests

  4. Oceanic island communities

Show answer
Correct Option: D
Explanation:

Oceanic island communities are more vulnerable to invasion by outside animals and plants than those of main lands. These islands include high volcanic-based islands like Hawaii and low coral islands like Marshalls. These areas are susceptible to invader impacts. This is due to lack of natural competitors and predators which control populations in the ecosystems.  

Thus, the correct answer is 'Oceanic island commuities.'

Ritualized contests with little risk of serious injury or death to animal within the species lead to

zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

  1. A stable dominance hierarchy

  2. Biological altruism

  3. Adaptive radiation

  4. Instinctive behavior

  5. A broader habitat

Show answer
Correct Option: A
Explanation:

Ritual contests with little risk to injury help individuals to display their stereotyped aggression which in turn prevent other organisms to attack it. Organization of individuals of a grouped according to their dominance refers to as dominance hierarchy. The agonistic behaviour such as ritual contest with little risk leads to maintenance of stable hierarchy. 

Therefore, the correct answer is option A.

Which is social foresting species?

zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

  1. Leucaena leucocephala

  2. Tectona grandis

  3. Mangifera indica

  4. Rosa indica

Show answer
Correct Option: A
Explanation:

The social foresting species is:

Correct option is A  Leucaena leucocephala.
The common name of the  Leucaena leucocephala is Sebabul. This is the leguminous plant and it is fast growing . This plant is grown for social forestry.

Sacred groves are found in

zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

  1. Meghalaya

  2. Punjab

  3. Jammu and Kashmir

  4. Bihar

Show answer
Correct Option: A
Explanation:

A sacred grove is any grove of trees that are of special religious importance to a particular culture. These are also called sacred woods. They are examples of in-situ conservation of biodiversity. Such groves are found throughout the world. In our country, such groves are found in Meghalaya.

So, the correct answer is 'Meghalaya'.

Oran is a

zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

  1. Sacred grove

  2. Sacred landscape

  3. Sacred animal

  4. Endangered animal

Show answer
Correct Option: B
Explanation:

Oran is a major coastal city located in the north-west of Algeria. It is an important city of Algeria due to its commercial, industrial, and cultural importance. It is a sacred landscape. A legend says that in 900 AD, lions still lived in the area. The last two lions were hunted on a mountain near Oran and are elsewhere referred to as "mountain lions".

So, the correct answer is 'Sacred landscape'.