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Why does complex multicellular organisms need a nervous system?
Complex multicellular organisms have specialized cells that need to communicate quickly and efficiently to respond to external stimuli, coordinate movement, and maintain internal balance. The nervous system allows for rapid communication through electrical impulses, enabling these organisms to adapt to their environment and survive.
Why do humans have multicellular cells?
We need to be multicellular, because we need all the different types of cells for what our body's systems do. Being multicellular gives humans more capabilities that other organisms might not be able to do. Humans would not be built the same way that we are now if we were not multicellular, we would have a lot less functions.
How does the environment of cells differ for a unicellular and multicellular organism?
Unicellular and multicellular environments may vary. Multicellular organisms are able to do more functions, and unicellular is one-cell, so their functions are limited, although some unicellular ones such as thermophiles and photosynthetic bacteria can thrive in any environment with sun or heat. Multicellular ones like animals, can be found anywhere active, although different types exist in different places.
Multicellular organisms are able to make new cells to replace damaged cells?
Mitosis
How do single celled organisms have movement?
Multicellular organisms can move in different ways depending on their size and shape. The term multicellular refers to most living things on the planet so the question cannot be answered without generalising.
What are some advantages in being multicellular?
Multicellular organisms can become much larger than unicellular organisms, and store a lot more resources within them due to assimilation, and thus can tolerate more extreme conditions without food. Multicellular organisms are also able to exist in multiple media, and are able to have specialised cells in their bodies so to specialise areas of their body.
Why does complex multicellular organisms need a nervous system?
Complex multicellular organisms have specialized cells that need to communicate quickly and efficiently to respond to external stimuli, coordinate movement, and maintain internal balance. The nervous system allows for rapid communication through electrical impulses, enabling these organisms to adapt to their environment and survive.
Sexual reproduction evolved before the evolution of?
Sexual reproduction evolved before the evolution of multicellularity. Organisms were able to reproduce sexually as single-celled organisms before multicellular life forms emerged.
Humans require organ systems to carry out life processes Single-celled organisms do not have organ systems and yet they are able to carry out life processes This is because?
Single-celled organisms have a simpler structure compared to complex multicellular organisms like humans. They are able to carry out life processes through direct exchange of nutrients and waste products through their cell membrane, enabling them to function independently. In contrast, multicellular organisms require specialized organ systems to coordinate and carry out more complex functions throughout the body.
Do cells ever die?
Yes. Cells die all the time. If they didn't, multicellular organisms would not be able to function.
Why do humans have multicellular cells?
We need to be multicellular, because we need all the different types of cells for what our body's systems do. Being multicellular gives humans more capabilities that other organisms might not be able to do. Humans would not be built the same way that we are now if we were not multicellular, we would have a lot less functions.
Why must large organisms be multicellular?
Multicellular organisms require specialized organs and systems because in multicellular organisms, different jobs are done by different cells that are specialized, e.g. A blood cell carries oxygen. A nerve cell sends and receives signals. In multicellular organisms different functions are divided among different cells. The cells in multicellular organisms are organized in ways the enables them to survive and reproduce. For any multicellular organism to survive, different cells must work together. The right type of cell must be in the right place to do the work that need to be done.
How does the environment of cells differ for a unicellular and multicellular organism?
Unicellular and multicellular environments may vary. Multicellular organisms are able to do more functions, and unicellular is one-cell, so their functions are limited, although some unicellular ones such as thermophiles and photosynthetic bacteria can thrive in any environment with sun or heat. Multicellular ones like animals, can be found anywhere active, although different types exist in different places.
Multicellular organisms are able to make new cells to replace damaged cells?
Mitosis
In addition to being able to grow larger what is another benefit of being multicellular?
Another benefit of being multicellular is the ability to specialize different cells for different functions, leading to increased efficiency and complexity in organisms. Specialized cells can perform specific tasks, such as nutrient uptake or movement, allowing for more sophisticated biological processes to occur within multicellular organisms.
In what sense can protists be considered the most complex types of cells?
Protists are the most diverse group of organisms on Earth... they're kind of the group that evolutionary biologists and scientists can't place in any other of the animal, plant, bacteria, fungi groups so they get a group of their own. So, some are more complex than bacteria, and some aren't.
How do single celled organisms have movement?
Multicellular organisms can move in different ways depending on their size and shape. The term multicellular refers to most living things on the planet so the question cannot be answered without generalising.
