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Questions and Answers
Unicellular organisms perform all their functions like digestion, respiration and reproduction through a single cell.
Unicellular organisms perform all their functions like digestion, respiration and reproduction through a single cell.
True
The number of cells in each type in the body of a simple organism like Hydra can be in the thousands.
The number of cells in each type in the body of a simple organism like Hydra can be in the thousands.
True
The human body is composed of millions of cells to perform various functions.
The human body is composed of millions of cells to perform various functions.
False
In multicellular animals, a group of similar cells along with intercellular substances perform a specific function, and this organization is called an organ.
In multicellular animals, a group of similar cells along with intercellular substances perform a specific function, and this organization is called an organ.
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All complex animals consist of only three basic types of tissues.
All complex animals consist of only three basic types of tissues.
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Tissues are organized in specific proportions and patterns to form an organ system.
Tissues are organized in specific proportions and patterns to form an organ system.
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The digestive system is an example of an organ system.
The digestive system is an example of an organ system.
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In multicellular animals, the same basic functions are carried out by different groups of cells in a well-organized manner.
In multicellular animals, the same basic functions are carried out by different groups of cells in a well-organized manner.
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The respiratory system is not an example of an organ system.
The respiratory system is not an example of an organ system.
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The number of cells in the human body is in the billions.
The number of cells in the human body is in the billions.
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