Tag: introduction to tissues

Questions Related to introduction to tissues

Total land area of the world is

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

  1. 1393 million hectares

  2. 13393 million hectares

  3. 103393 million hectares

  4. 393 million hectares

Show answer
Correct Option: B
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'.

An incomplete ecosystem is

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

  1. Grassland

  2. River

  3. Wetland

  4. Cave

Show answer
Correct Option: D
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.'

Which is a man made ecosystem?

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

  1. Herbarium

  2. Tissue culture

  3. Forest

  4. Aquarium

Show answer
Correct Option: D
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.'

Combined ecosystem forms ______.

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

  1. Biosphere

  2. Genus

  3. Biomes

  4. Species

Show answer
Correct Option: C
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'.

A list of endangered species is given in.

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

  1. Bluebook

  2. Treatise in Biology

  3. Red Data Book

  4. Proceedings of UNESCO

Show answer
Correct Option: A

The largest unit in which gene flow is possible is?

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

  1. Organism

  2. Population

  3. Species

  4. Genes

Show answer
Correct Option: C
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.

Suggest one word for each of the following statements/ definitions.
(a) The physical and biological world where we live in.
(b) Each level of food chain where transfer of energy takes place.
(c) The physical factors like temperature, rainfall, wind and soil of an ecosystem.
(d) Organisms which depend on the producers either directly or indirectly for food.

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

  1. (a) Trophic level, (b) Environment/biosphere, (c) Abiotic factors, (d) Consumers/heterotrophs

  2. (a) Environment/biosphere, (b) Trophic level, (c) Abiotic factors, (d) Consumers/heterotrophs

  3. (a) Environment/biosphere, (b) Abiotic factors (c) Trophic level, (d) Consumers/heterotrophs

  4. None of the above

Show answer
Correct Option: B
Explanation:
  • The physical and biological world where we live in - Environment/biosphere
  • Each level of food chain where transfer of energy takes place - Trophic level
  • The physical factors like temperature, rainfall, wind and soil of an ecosystem - Abiotic factors
  • Organisms which depend on the producers either directly or indirectly for food - Consumers/heterotrophs
Therefore, the correct answer is option B.

An ecological community is an assemblage of interacting populations.

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

  1. True

  2. False

Show answer
Correct Option: A
Explanation:
An Ecological community is a naturally occurring group of native plants, animals and other organism that are interacting in a unique habitat
So, the correct option is 'True'


All plants, animals and other organisms that make up a distinct natural community in any climatic region is known as the

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

  1. Biome

  2. Biounit

  3. Biomagnification

  4. Biological ecosystem

Show answer
Correct Option: A
Explanation:

A biome  is a community of plants and animals that have common characteristics for the environment they exist in. They can be found over a range of continents. Biomes are distinct biological communities that have formed in response to a shared physical climate. "Biome" is a broader term than "habitat"; any biome can comprise a variety of habitats. hile a biome can cover large areas, a microbiome is a mix of organisms that coexist in a defined space on a much smaller scale. For example, the human microbiome is the collection of bacteria, viruses, and other microorganisms that are present on or in a human body. A 'biota' is the total collection of organisms of a geographic region or a time period, from local geographic scales and instantaneous temporal scales all the way up to whole-planet and whole-time scale spatiotemporal scales. The biotas of the Earth make up the biosphere.

So the correct option is 'biome'.

Basic unit of ecological hierarchy is 

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

  1. Population

  2. community `

  3. ecosystem

  4. individual

Show answer
Correct Option: D
Explanation:

An organism (or an individual ) is a living unit of nature and is the most basic unit of ecological hierarchy.