https://padlet.com/pearsonk570/84mkmlaggqzgz58w Made for class en-us 2021-04-21 13:20:12 UTC 2021-04-22 16:10:14 UTC hello@padlet.com https://padlet.net/icons/png/1f637.png pearsonk570 https://padlet.com/pearsonk570/84mkmlaggqzgz58w/wish/1442445999 Tiny infectious agents that can only multiply when they are inside a host, the living cells of plants, animals, or bacteria. How they are made.Viruses are fundamentally a lean genome surrounded by a protective protein coat. How they are able to multiply.For viruses to multiply, they usually need support of the cells they infect. Only in their host´s nucleus can they find the machines, proteins, and building blocks with which they can copy their genetic material before infecting other cells.Viruses depend on the host cells that they infect to reproduce. When found outside of host cells, viruses exist as a protein coat or capsid, sometimes enclosed within a membrane. they can be visible.]]> 2021-04-21 13:24:43 UTC https://padlet.com/pearsonk570/84mkmlaggqzgz58w/wish/1442445999 pearsonk570 https://padlet.com/pearsonk570/84mkmlaggqzgz58w/wish/1446970041 Single-celled organisms that do not rely on a host. Bacteria are single celled microbes. The cell structure is simpler than that of other organisms as there is no nucleus or membrane bound organelles. Bacteria do not grow and multiply the same way as animals or humans. They take in nutrients and reproduce by dividing – one bacteria splits and becomes two bacteria, two become four, four become eight and so on. Doubling can occur quickly if the conditions – enough nutrients, proper temperature, adequate moisture, etc.They aren't even a full cell. They are simply genetic material (DNA or RNA) packaged inside of a protein coating. They need to use another cell's structures to reproduce. This means they can't survive unless they're living inside something else (such as a person, animal, or plant). Yes. Most bacteria are too small to be seen without a microscope, but in 1999 scientists working off the coast of Namibia discovered a bacterium called Thiomargarita namibiensis (sulfur pearl of Namibia) whose individual cells can grow up to 0.75mm wide.

]]> 2021-04-22 12:56:22 UTC https://padlet.com/pearsonk570/84mkmlaggqzgz58w/wish/1446970041 pearsonk570 https://padlet.com/pearsonk570/84mkmlaggqzgz58w/wish/1446987936 Organisms such as yeasts or molds that reproduce quickly in moist, humid environments. Fungi can be made up of a single cell as in the case of yeasts, or multiple cells, as in the case of mushrooms. The bodies of multicellular fungi are made of cells that band together in rows that resemble the branches of trees. Each individual branched structure is called a hypha (plural: hyphae).Fungi reproduce asexually by fragmentation, budding, or producing spores. Fragments of hyphae can grow new colonies. Mycelial fragmentation occurs when a fungal mycelium separates into pieces with each component growing into a separate mycelium. Somatic cells in yeast form buds.Germs are the microscopic bacteria, viruses, fungi, and protozoa that can cause disease. ... Some bacteria are good for our bodies — they help keep the digestive system in working order and keep harmful ... They need to use another cell's structures to reproduce. ... They'll die quickly unless a live host comes along.The best known evidence of fungi - their spore-bearing structures or fruiting bodies - are visible to the naked eye, but the main part of the fungal structure can only be seen with the aid of a lens or low power microscope.]]> 2021-04-22 12:59:59 UTC https://padlet.com/pearsonk570/84mkmlaggqzgz58w/wish/1446987936