Tag: level of biological organization in animals

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

Basic unit of ecological hierarchy is

  1. Ecosystem

  2. Biological community

  3. Population

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

The basic unit of ecological hierarchy is individual because a community starts building from an individual which grows onto form an entire ecosystem. 

It cannot be Ecosystem as that is one of the largest unit in hierarchy. Many biological communities together form an ecosystem and many individuals in a given space form a population. The ecological hierarchy goes like this: individual---> population---> community ----> ecosystem ----> biome ---> biosphere. So the correct answer is 'Individual'. 

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

The habitable part of the earth is called

  1. Soil

  2. Lithosphere

  3. Biosphere

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

The biosphere is made up of the parts of Earth where life exists, but there is uneven distribution of living organisms in the biosphere. The biosphere extends from the deepest root systems of trees, to the dark environment of ocean trenches, to lush rain forests and high mountains.
Scientists describe the Earth in terms of spheres - Lithosphere, Atmosphere, Hydrosphere. Since life exists on the ground, in the air, and in the water, biosphere overlaps all these spheres. Biosphere has existed for about 3.5 billion years.

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

Amoeba, Hydra, Jellyfish, plants and animals; all are living things so by definition they are

  1. Organisms

  2. Tissues

  3. Organelles

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

A.An organism is an individual living thing. It can be as simple as a single-celled Amoeba or it can be as complex as a human being.
B.A tissue is a collection of structurally similar cells acting together to perform a specific function.
C.An organelle is a small constituent of a cell that has a specific function. For example, mitochondria (called as powerhouse of the cell) aids in generating energy for cell functions.
D.An organ is a group of tissues that performs a specific function. For example, stomach and kidney are organs. 

So, the correct option is 'organism'.

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

All the living organisms and non-living factors of the Earth constitute

  1. Biosphere

  2. Community

  3. Biome

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

The biosphere is a global ecosystem composed of living organisms (biotic) and the nonliving (abiotic) factors from which they derive energy and nutrients. It is a relatively thin life-supporting stratum of Earth's surface, extending from a few kilometres into the atmosphere to the deep-sea vents of the ocean. 

Biomes are very large ecological areas on the Earth's surface, with fauna and flora (animals and plants) adapting to their environment. 
A community is a collection of species populations.

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

Another term for ecosystem is  

  1. Community

  2. Population

  3. Biosphere

  4. Biome

  5. Trophic level
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

All the biotic and the abiotic components together form biosphere or ecosystem. A biosphere is composed of all living organisms and nonliving things. The population is the number of individuals in a given area. Biome includes all flora and fauna. A trophic level is defined as the position of an individual in the food chain. So, the correct answer is option C.

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

Which of the following includes all living organisms and all life-supporting regions of the Earth?

  1. Biosphere

  2. Ionosphere

  3. Stratosphere

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

The biosphere is the biological component of earth systems, which also include the lithosphere, hydrosphere, atmosphere, etc. The biosphere includes all living organisms on earth, together with the dead organic matter produced by them. 

Thus, the correct answer is option A.

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

The term biocoenosis was proposed by

  1. Tansley

  2. Carl Mobius

  3. Warming

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

The term biocoenosis means ecological community. It was coined by Carl Mobius. It describes an association of populations of different species living together in a defined habitat with some degree of interdependence and community ecology is the description and analysis of patterns and processes within the community.

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

Plant species having a wide range of genetical distribution evolve into a local population known as

  1. Ecotype

  2. Biome

  3. Ecosystem

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

The different populations of the same organism present in particular geographical areas are called as local populations or demes. A local population adapted genetically to its particular environment is called as ecotype. There may be several ecotypes of the same organism, which show variations amongst them.

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

The plants and animals living in a given area form

  1. Biological community

  2. Ecotone

  3. Biome

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

Biological or biotic community is an assemblage of populations of different species of bacteria, fungi, plants and animals, which live in a particular area and interact with one another through competition, predation, mutualism etc. Each biotic community has a specific composition and structure.