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A ventilation system is needed in order to obtain oxygen for living organisms and to get rid of carbon dioxide. Surface diffusion utilized by many smaller organisms is not sufficient in supplying the oxygen needs of the body. It is also needed to maintain a concentration gradient in the alveoli.

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Why did the need for hormones and an endocrine system arise with multicellular organisms?

because chicken wangs cow burger


Why do multi cellular organisms need a ventilation system?

A ventilation system is needed in order to obtain oxygen for living organisms and to get rid of carbon dioxide. Surface diffusion utilized by many smaller organisms is not sufficient in supplying the oxygen needs of the body. It is also needed to maintain a concentration gradient in the alveoli.


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.


What do all multicellular organisms need to get energy?

All multicellular organisms need to obtain energy by consuming food or other organisms. This energy is essential for cellular processes like growth, development, and metabolism.


Why do multicellular organisam need transportation system?

Multicellular organisms need a transportation system to deliver essential nutrients, oxygen, and other molecules to cells throughout the body. This system ensures that all cells receive the necessary resources for survival and function, and also helps remove waste products and regulate the internal environment of the organism.


Would multicellular organisms function without specialized cells?

no it cant because multicellular organisms need specilized cells in order for them to remain stable to focus in one job


Do all multicellular organisms need oxygen for their cells to get energy they?

No, not all multicellular organisms need oxygen for their cells to get energy. Some organisms, like anaerobic bacteria, can generate energy without oxygen through processes like fermentation. Additionally, some multicellular organisms, like certain deep-sea creatures, have evolved adaptations to survive in low-oxygen environments.


Why do multicellular organisms need specialized tissues?

Cell specialization is necessary to support multicellular life because multicellular organisms need different tissues. This means it needs cells to make up those tissues and perform different functions.


Is a cat made up of one cell?

A cat is multicellular. Multicellular organisms have more than two cells. A multicellular organism is one that can be seen without the need of a microscope.


Do all living things need a digestive system?

No, not all living things need a digestive system. For example, some simple organisms like bacteria absorb nutrients directly through their cell membrane. However, for complex multicellular organisms, a digestive system is necessary to break down food into nutrients that can be absorbed and utilized by the body.


How do the cells in the multicellular organisms get the recources they need to stay alive?

water,gas,food,and waste disposposol


Distinguish between unicellular and multicellular?

The main distinction between unicellular and multicellular is the number of cells. Unicellular organisms survive on a single cell while multicellular means that they need a number of cells to survive.