what do unicellular organisms need to survive?
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Many unicellular organisms live in bodies of water and must move around to find food. Most often, they must obtain nutrients by eating other organisms. Plant-like protists, and some types of bacteria, can make their own food through photosynthesis.
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The Importance of Unicellular Organisms Some are dangerous to humans, but many are important to human health and the environment. Many unicellular organisms play an important role in recycling nutrients. Fungi and bacteria, for example, are decomposers (Figure 1).
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Unicellular organisms include bacteria and some protists and fungi. Many unicellular organisms live in bodies of water and must move around to find food. Most often, they must obtain nutrients by eating other organisms. Plant-like protists, and some types of bacteria, can make their own food through photosynthesis.
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For each microorganism, there is a set of conditions (both physical and chemical) under which it can survive. Microbes have a variety of physical requirements for growth, including temperature, pH, and water stress.
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Unicellular organisms must maintain homeostasis - relatively constant internal physical and chemical conditions. To maintain homeostasis, unicellular organisms grow, respond to the environment, transform energy, and reproduce.
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Unicellular organisms with a nucleus are part of the kingdom Protista. The Biological Kingdoms that include unicellular life are: Protista, Eubacteria, and Archaebacteria.
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Unicellular organisms with a nucleus are part of the kingdom Protista. The Biological Kingdoms that include unicellular life are: Protista, Eubacteria, and Archaebacteria. kINGDOM MONERA HAS UNICELLULAR PROKARYOTES WHILE KINGDOM PROTISTA INCLUDE UNICELLULAR EUKARYOTES.
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A unicellular organism, also known as a single-celled organism, is an organism that consists of a single cell, unlike a multicellular organism that consists of multiple cells. ... In contrast, even the simplest multicellular organisms have cells that depend on each other to survive.
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Unicellular organisms are organisms that have one cell. ... The prokaryotes, bacteria and archaea, have cells with no nucleus and a simple cell structure. Eukaryotes have a nucleus, and a more complex cell structure.
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A simple, unicellular organism (consisting of one cell) can rely on diffusion to move substances into and out of the cell. Its surface area is large compared to its volume , so nutrients and other substances can pass quickly through the membrane and around its 'body'.
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Answer and Explanation: Unicellular organisms do not need a circulatory system because they are much simpler in structure than compared to multicellular organisms.
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Algae are plant-like organisms that can be either unicellular or multicellular, and derive energy via photosynthesis. Protozoa are unicellular organisms with complex cell structures; most are motile. Microscopic fungi include molds and yeasts.
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Unicellular organisms do not breathe in the typical sense, but they respirate by allowing oxygen to enter the cell membrane through the process of diffusion. ... Instead of the actual process of breathing, oxygen simply enters in their bodies by simple diffusion. They don't have any breathing system.
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Single cell organisms like some algae or bacteria are very much alive. They are a little biochemical machines which is continuously using some type of energy from their environment to maintain their internal conditions which are necessary for their survival and allow their reproduction—so yes very much alive.
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Each organ system in the body has a specific job to do for the organism. ... A unicellular organism must perform all functions necessary for life. • A multicellular organism has specialized cells, tissues, organs, and organ systems that perform specific functions.
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a unicellular organism is very unspecalized. it has to be able to carry all the functions of a living thing in one cell. a multicellular organism is very complex. ... each cell does a specific thing to work together to keep the whole organism alive.
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Plants are multicellular, meaning they are made of many cells. If plant cells survive, the plant survives. In order to live and provide proper function to the plant, plant cells need oxygen, energy from the sun, minerals/nutrients, and water.