Presentation on theme: "Also known as the Bacteria"— Presentation transcript:
1Also known as the Bacteria Kingdom MoneraAlso known as the Bacteria
2Evolution of MoneransThe original living things on earth were prokaryotic cells. They could survive in almost any habitat. See p. 129Even now, there are species of monerans in almost every place you can think of. Even in ice and volcanic vents.
3Monerans are prokaryotic cells This means they are very small and have no nucleus or other organellesAnd just one huge molecule of DNA
4Monerans come in three basic shapes (also see p. 131) Sphere Rod Spiral
5Monerans can get energy in many ways Autotrophic: can make their own food from the sunHeterotrophic: can get energy from the matter in their environment (food)
6If conditions are poor (too dry, not enough food, etc) They may produce spores, like this tetanus bacterium below
7Some monerans are able to move This spiral shaped bacterium has many hair-like flagella to help propel it.
8Bacteria can reproduce quickly under the right conditions Asexually through binary fission (dividing into 2 identical cells)Sexually through conjugation (swapping DNA)
9The job of most monerans is to break down dead and decaying material (Decomposers) But some can be used in producing food (yogurt) or can cause disease (like these pictures below)Bacteria that cause infections