Q:

What are four levels of organization in a multicellular organism?

A:

The five levels of organization in a multicellular organism are cells, tissues, organs, organ systems and organisms. The level of complexity and functionality increases going from cells to organisms.

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Cells are the basic unit of a multicellular organism. Humans have many types of cells, including blood cells, nerve cells and bone cells. Cells with similar structure and function merge to form tissues such as epithelial or connective tissue.

Organs, such as the heart or kidney, are composed of different types of tissue to perform a specific function. Organs come together to constitute organ systems such as the nervous system, digestive system and immune system. Together, these organ systems make up an organism.

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Related Questions

  • Q:

    What are examples of multicellular organisms?

    A:

    Cows, buffaloes, elephants, monkeys, dogs and cats are all examples of multicellular organisms. Humans are the most complex of all multicellular organisms. All such organisms have billions of cells, tissues and different organ systems in the body.

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  • Q:

    What is the definition of "multicellular organisms"?

    A:

    Multicellular organisms are composed of many cells, which are integrated and independent to various degrees, according to Encyclopædia Britannica. A multicellular organism's development is accompanied by cellular specialization and division of labor. The cells of multicellular organisms become efficient in one process and are dependent on other cells to survive.

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  • Q:

    What is the function of meiosis?

    A:

    The function of meiosis is for sexual reproduction as meiosis creates new cells for an organism. Meiosis has two cell divisions known as meiosis I and meiosis II.

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  • Q:

    What is the significance of mitosis?

    A:

    Mitosis' significance is cell division, which enables an organism to grow and reproduce. During mitosis, a single cell divides and produces two identical daughter cells. Each cell contains the same genetic material and chromosome number as the original cell.

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