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There is a limit to how big a cell can get, and that nearly always means we need a microscope to see them, Size is limited by the need for substances to diffuse in and out of the cell. If it gets too big there simply isn't enough surface to allow enough exchange of substances for the cell to maintain its life processes.

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What are the differences between single-celled organisms?

well i know that multi cellular organisms have a much more complecated structure and process but a single cellular organism has a process called the cellular resportary syestem and this works well but mostly on small single celled organisms becasue if you had a large organisms the size or dogs then by the time the oxygen from the H2O would get to the nuclei the paramecium or what ever organism you are specifying it would die that is why single celled organisms are so small...size matters


Is eubacteria a single cell organism?

Yes, eubacteria are single-celled organisms. They are prokaryotes, meaning they lack a cell nucleus and other membrane-bound organelles. Eubacteria are found in various environments, including soil, water, and the human body.


How many cells make up amoeba?

one


What makes a multi-celled organism different from one that is single-cell?

In a single-celled organism (Unicellular organism), one cell carries out all the functions of the body. For example, transporting nutrients, excretion ,etc are performed by the single cell which makes up the organism. In a multi-cellular organism, on the other hand, various cells arrange or group themselves to perform certain or particular functions. They are specialized to perform any one type of function. This is what makes up tissues, organs and ogran systems in a multi-cellular organism. One group of cells performs one function. For example, blood corpuscles are of different types. One type (WBCs) helps in fighting diseases, another type (RBCs) will help in transporting oxygen to various cells and so on.


What is a living thing that is so small it can only be seen with a microscope?

A microorganism (microscopic organism)An example is planktonAn atom is 4 x 104 or 40,000 x too small to be seen.

Related Questions

Is an orchid single celled?

Organism that have one cell (single celled) are so small, you would need a microscope to see them. So, orchids are multicellular.


Is cerebrum a singled cell organism?

The cerebrum is part of the brain, so no, it is not a single-celled organism.


What are prokatyotes?

Prokaryotes are single celled organism that have no defined nucleus so it can live in it's own


What are the differences between single-celled organisms?

well i know that multi cellular organisms have a much more complecated structure and process but a single cellular organism has a process called the cellular resportary syestem and this works well but mostly on small single celled organisms becasue if you had a large organisms the size or dogs then by the time the oxygen from the H2O would get to the nuclei the paramecium or what ever organism you are specifying it would die that is why single celled organisms are so small...size matters


Is eubacteria a single cell organism?

Yes, eubacteria are single-celled organisms. They are prokaryotes, meaning they lack a cell nucleus and other membrane-bound organelles. Eubacteria are found in various environments, including soil, water, and the human body.


Is amoeba an unicellular plant?

Amoeba is a single-celled organism meaning it exists as only one cell and it performs all cell functions alone. Being unicellular means that you are a single-celled organism and so amoeba is unicellular, like all protists.


Why are villi so small?

Villi are so small because they are only made of one cell- they are single celled organisms


How many cells make up amoeba?

one


Is rust a single cellled organism?

Rust on your fence or rust on your crops? Rust usually, that occurs on metallic objects is iron oxide, it's an inorganic compound so no cells. Unicellular usually refers to organic organisms of single cellular structure. Another 'Rust' is an organism. Do you mean Rust fungus? It is a fungus and produces spores which spread and cause the crop damage, it's not unicellular. It has a complex structure.


Is an amoeba unicellular?

An amoeba is a shapeless, unicellular organism. Amoebas eat algae, bacteria, other protozoans, and tiny particles of dead plant or animal matter. Plants are living organisms belonging to the kingdom Plantae. They are not single-celled and there are thought to be 300-315 thousand species of plants. So a main difference is amoeba's are singled-celled, plants are not.


What makes a multi-celled organism different from one that is single-cell?

In a single-celled organism (Unicellular organism), one cell carries out all the functions of the body. For example, transporting nutrients, excretion ,etc are performed by the single cell which makes up the organism. In a multi-cellular organism, on the other hand, various cells arrange or group themselves to perform certain or particular functions. They are specialized to perform any one type of function. This is what makes up tissues, organs and ogran systems in a multi-cellular organism. One group of cells performs one function. For example, blood corpuscles are of different types. One type (WBCs) helps in fighting diseases, another type (RBCs) will help in transporting oxygen to various cells and so on.


What is a brainless organism?

A brainless organism is an organism that lacks a centralized organ for coordinating its actions and responding to stimuli, such as plants, fungi, or single-celled organisms like bacteria or amoebas. These organisms rely on decentralized systems or specialized structures to carry out life processes.