The Complexity and Diversity of Multicellular Organisms: Examples and Functions

living things that are made of two or more cells

Living things that are made of two or more cells are called multicellular organisms

Living things that are made of two or more cells are called multicellular organisms. These organisms are more complex than single-celled organisms, as they have specialized cells and tissues that work together to carry out various functions. Here are a few examples of multicellular organisms:

1. Humans: Humans are composed of trillions of cells that work together to form different tissues and organs. Each cell has its own specific function, such as muscle cells for movement, nerve cells for transmitting signals, and blood cells for transporting oxygen.

2. Animals: Most animals, including mammals, birds, reptiles, amphibians, and fish, are multicellular organisms. These organisms have specialized cells and structures that allow them to perform tasks like digestion, respiration, reproduction, and locomotion.

3. Plants: Plants are another example of multicellular organisms. They have a variety of cell types such as root cells, stem cells, leaf cells, and flower cells. These cells work together to perform functions like photosynthesis, absorption of water and nutrients, and reproduction.

4. Fungi: Fungi, including molds, yeasts, and mushrooms, are also multicellular organisms. Their cells are organized into thread-like structures called hyphae, which collectively form the intricate network known as mycelium. Fungi obtain nutrients by absorbing them from their surroundings.

5. Protists: Although most protists are unicellular, there are some examples of multicellular protists. For instance, red algae forms large, multicellular structures called seaweeds or kelp, which can grow several meters long.

In summary, multicellular organisms are composed of two or more cells that work together to carry out various functions necessary for their survival and reproduction. These organisms exhibit a higher level of complexity compared to single-celled organisms, allowing them to perform a wide range of tasks and thrive in different environments.

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