Tag: living world of animals
Questions Related to living world of animals
The organism made up of only a single cell is known as
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Unicellular
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Acellular
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Multicellular
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None of the above
The cell is the structural unit of life. Unicellular organisms are made up of one cell that performs all the functions and thus, called as a single-celled organism.
Which of these is a multicellular organism?
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Amoeba
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Paramoecium
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Human beings
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None of these
Cells vary in shape from 0.1 mm to 1 m.
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True
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False
Which one from the following is an example of multicellular organism?
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Chlamydomonas
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Bacteria
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Snake
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Amoeba
Efficient large-sized cells are
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Elongated
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Elongated or branched
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With large surface area
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Having microvilli
Which of following organisms can be seen only under the microscope?
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Unicellular
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Multicellular
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Vertebrates
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All of the above
- Most unicellular organisms are of microscopic size and are thus classified as microorganisms, for example, Phytoplankton and protozoa range from about 0.001 mm to about 0.25 mm.
- Most of the multicellular organisms and vertebrates are visible to the naked eye, which means that it is possible to view them without using the microscope.
So, option A is the correct answer.
Many animals have physical adaptation of blending to the environments. This is known as
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Mimicry
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Behavioural
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Migration
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Camouflage
- Mimicry is considered to be the copy of action or behavior of someone or something. It can be in the form of sound, smell, behavior etc.
- Behavioral adaptation is the one that organism adapts for the survival. It includes migration, hibernation etc.
- Migration is the process in which animal moves large distances in order to avoid seasonal stress.
- Camouflage is a combination of material, colouration and illumination that helps organism either to hide or disguise itself.