Tag: basics of ecology

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Questions Related to basics of ecology

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

Ari ecosystem is not a

  1. Open system

  2. Closed system

  3. Variable system

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

An open system is defined as a system wherein there is free exchange of both matter and energy with the surroundings. The system has interaction with the external environment. A close system is defined as a system where there is no exchange of either matter or energy with the surroundings. All the ecosystems on Earth are called as open systems. Earth is an open system for energy. 

Thus, the correct answer is 'Closed system.'

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

Edge effect is observed in case of 

  1. Ecotone

  2. Ecozone

  3. Biotype

  4. Ecosphere
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
The edge effect is caused by a distinct edge or boundary between two ecosystems such as between forrest and grasslands or land and water. These areas where the edge effect is observed are called ecotones. Ecotones are where increased biodiversity is observed.

So, the correct answer is 'A'.
Multiple choice zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

Major communities of the world are

  1. Scrubs, jungles and gardens

  2. Ocean, fresh water and forest communities

  3. Grassland and desert communities

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

The living world is made up of different communities living in it. Some of these communities are the communities living in oceans, fresh water and forest communities, communities living in grasslands and deserts. These communities have different individuals belonging to them and have certain different characteristics. So, option D is the correct answer.

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

Total land area of the world is

  1. 1393 million hectares

  2. 13393 million hectares

  3. 103393 million hectares

  4. 393 million hectares
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
About one-fourth of earth's surface is land which corresponds to 13,393 million hectares. Most of the land is occupied by human habitations and industrial area and about 26% of land is covered by vegetation.
So, the correct answer is '13393 million hectares'.
Multiple choice zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

An incomplete ecosystem is

  1. Grassland

  2. River

  3. Wetland

  4. Cave
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

An incomplete ecosystem is cave. Its habitat is not suitable for primary productivity. It lacks sunlight and primary plant productivity. The animals and plants are present only at the entrance of cave as limited sunlight reaches at the entrance.

Thus, the correct answer is 'Cave.'

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

Which is a man made ecosystem?

  1. Herbarium

  2. Tissue culture

  3. Forest

  4. Aquarium
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

An ecosystem consists of biotic and abiotic components. Biotic components or living things include animals, plants, microorganisms. Abiotic components or nonliving things include air, soil, temperature. It is of two types, natural ecosystem and artificial or man made ecosystem. Examples of natural ecosystem include forest, aquatic ecosystem. Examples of man made ecosystem includes aquarium, zoo, botanical garden. In man made ecosystem, the plants and animals grow or survive outside their natural habitat in an artificial environment.

Thus, the correct answer is 'Aquarium.'

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

Combined ecosystem forms ______.

  1. Biosphere

  2. Genus

  3. Biomes

  4. Species
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • A biome is a group of ecosystems with similar climates and organisms.
  • There are five major biomes in the world. They are the forest, desert, grassland, aquatic and altitudinal biomes.
  • Hence Combined ecosystem forms Biomes.
  • So, the correct answer is 'Biomes'.
Multiple choice zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

A list of endangered species is given in.

  1. Bluebook

  2. Treatise in Biology

  3. Red Data Book

  4. Proceedings of UNESCO
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The Red Data Book is the documentation document established by IUCN that provides comprehensive information on rare and endangered species of plants and animals. Bluebook, treatise in biology, and UNESCO proceedings do not serve this specific function.

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

The largest unit in which gene flow is possible is?

  1. Organism

  2. Population

  3. Species

  4. Genes
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Gene flow is the passing over of genes from one population to another population. There are a various factors that affect the gene flow. The largest unit of population in which gene flow is readily possible is biological species. In species, successful interbreeding is possible which results in the successful reproduction and hence the gene flow. 

Thus, the correct answer is option C.