10 Questions
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.
True
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.
False
All complex animals consist of only three basic types of tissues.
False
Tissues are organized in specific proportions and patterns to form an organ system.
True
The digestive system is an example of an organ system.
True
In multicellular animals, the same basic functions are carried out by different groups of cells in a well-organized manner.
True
The respiratory system is not an example of an organ system.
False
The number of cells in the human body is in the billions.
True
Explore the diversity of organisms in the animal kingdom, from unicellular to multicellular ones. Learn about how functions like digestion, respiration, and reproduction are performed in single-celled organisms versus multicellular animals like Hydra.
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