Mammals push just like humans do. Birds do poop while flying, although they often poop just before taking off, perhaps to lighten their load. Although this might not reassure your seven-year-old, you might also mention that in some cultures people believe that is very good luck to be hit by bird poop. Fish poop through the end like us and reptiles have anuses.
Osmosis is important because some unicellular organisms are rather small and do not require intricate systems therefore it allows plants to easily take water from the soil by way of the roots making it simple and effective.
Well you see unicellular organisms are very unique in the fact that they live all on their own and move around with a flagellum or little motor, but to the point unicellular organisms carry out esscentally every function in life and they must in order to simply survive. One function is reproduction and they reproduce asexually
Plant Cells: Cell Wall, Cell membrane, nucleus, ribosomes, endoplasmic reticulum, Golgi bodies, cytoplasm. Animal cells : Cell membrane, nucleus, ribosomes, endoplasmic reticulum, Golgi bodies, cytoplasm Unicellular: Depends on what kind of unicellular organism.
If you are unicellular you will be able to reproduce very quickly, thereby making more of your type of cells quickly. Another advantage to being unicellular is that unicellular organisms live a short life, so they are able to adapt very quickly, verses a multi-cellular organism that could take hundreds of years to adapt.
Metabolism is the set of all chemical process that take place in the body. The processes allow all life sustaining functions needed in the cells of living organisms.
Excretion is the elimination of waste from the body.
it is where the the nutrients runs out of the mouth or the anus of the organism therefor they take the nutrients that other organisms leave behind and they get the nutrients from that that is the excretion of cnidaria
excreation takes place by contractile vacoule
It is believed to have taken about 2 billion years for unicellular organisms to evolve into multicellular organisms. The transition from unicellular to multicellular life forms is thought to have occurred around 600 million years ago.
The process of drinking by unicellular organisms is called pinocytosis. Cells take in drops of liquid outside the cell. They take in meager drops of extra-cellular fluids.
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If you are unicellular you will be able to reproduce very quickly, thereby making more of your type of cells quickly. Another advantage to being unicellular is that unicellular organisms live a short life, so they are able to adapt very quickly, verses a multi-cellular organism that could take hundreds of years to adapt.
Osmosis is important because some unicellular organisms are rather small and do not require intricate systems therefore it allows plants to easily take water from the soil by way of the roots making it simple and effective.
plants and protists
Respiration take place in all.Photosynthesis take place in auto phototrophs
If they're not using their cell, I'm not sure what else they would be using. There's only one cell to be used. If you're asking whether there is a "breathing mechanism" within the cell, then the answer is no. Unicellular organisms don't need an extensive respiratory system like multicellular organisms. Moreover, unicellular organisms couldn't "breathe" because no organelle supports such a thing. Instead, unicellular organisms get oxygen just through diffusion. Because unicellular organisms are small, the diffusion of oxygen into the cell is sufficient for cell respiration. In contrast, larger multicellular organisms can't obtain oxygen through diffusion alone because the oxygen couldn't "get" to every cell.
In single-celled organisms, excretion and respiration occur through the cell membrane via diffusion. Waste products, such as carbon dioxide and ammonia, are expelled from the cell directly into the surrounding environment, while oxygen and other necessary molecules can enter the cell through the same process. This efficient exchange is facilitated by the relatively large surface area-to-volume ratio of single-celled organisms, allowing them to meet their metabolic needs effectively. Additionally, some organisms may utilize specialized structures, like contractile vacuoles, to help manage waste removal.