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- Cell (biology) (28190 bytes)
2: ...[human]]s, are [[multicellular]], (humans have an estimated 100,000 billion = 10<sup>14</sup> cells).
3: ...ontain the [[genetics|hereditary information]] necessary for regulating cell functions and for transmi...
5: ...as chosen by [[Robert Hooke]] because of the likeness he saw between [[cork (material)|cork]] cells an...
8: ===Properties of cells===
9: ...ight|190px|Mouse cells grown in a culture dish. These cells grow in large clumps but each individual c... - Microbiology (4238 bytes)
1: ...roorganism]]s, including [[virus (biology)|virus]]es, [[prokaryote]]s and simple [[eukaryote]]s. Today...
3: ...ochemistry, genetics, and [[cell biology]]. Microbes have many traits that make them ideal [[model org...
5: ... small, therefore they do not consume many resources
6: ...erial cell in two in optimal conditions; ~30 minutes for ''[[E. coli]]'', but 12 to 24 hours for ''Myc...
9: ...f 90% of the cells are killed by the freezing process, there are millions of cells in a milliliter of ... - Prokaryote (4630 bytes)
1: ...roversial arrangement of Eukaryote, Bacteria, and Archaea is called the [[three-domain system]].
4: ...ed [[ribosome]]s, which produce protein. Prokaryotes are usually much smaller than eukaryotic cells.
6: ...However, they show a variety of parasexual processes where DNA is transferred between cells, such as [...
8: ...main attached following [[cell division]], sometimes through the help of a secreted [[slime layer]].
11: ...fection, but in many cases the organisms are harmless or even beneficial to the host. - Genetic code (15677 bytes)
2: ...he process of [[protein biosynthesis|protein synthesis]]. Nearly all living things use the same genet...
4: ==Genome expression==
6: ... [[RNA]], which is better suited for protein synthesis. This in turn is [[translation (genetics)|trans...
8: ...ist of two aromatic rings . The [[pyrimidine]] bases [[cytosine]] ('''C''') and [[thymine]] ('''T''') ...
10: ...nce of nucleotide bases, but there [[thymine]] takes the place of uracil.) - Biology (23579 bytes)
2: ''What are our priorities for writing in this area? To help develop a list...
4: ... wide range of [[Orders of magnitude (length)|scales]].
6: ...and [[histology]]. [[Developmental biology]] studies life at the level of the development or [[ontogen...
8: ... is [[astrobiology]] (or xenobiology) which examines the possibility of life beyond the Earth.
12: ...gn="top"|[[Image:EscherichiaColi NIAID.jpg|90px|''Escherichia coli'']] - Cell (29541 bytes)
2: ...[human]]s, are [[multicellular]], (humans have an estimated 100,000 billion = 10<sup>14</sup> cells).
3: ...ontain the [[genetics|hereditary information]] necessary for regulating cell functions and for transmi...
5: ...as chosen by [[Robert Hooke]] because of the likeness he saw between [[cork (material)|cork]] cells an...
8: ===Properties of cells===
9: ...ight|190px|Mouse cells grown in a culture dish. These cells grow in large clumps but each individual c... - Oxygen (9039 bytes)
2: {{Elementbox_series | [[nonmetal]]s }}
4: {{Elementbox_appearance_img | O,8| colorless }}
15: {{Elementbox_vaporpressure_katpa | | | | 61 | 73 | ...
18: {{Elementbox_oxistates | −'''2''', −1<br />(neutral oxide) }...
20: {{Elementbox_ionizationenergies4 | 1313.9 | 3388.3 | 5300.5 }} - Plankton (2900 bytes)
3: ...[ocean]], [[sea]]s, and bodies of [[Fresh water|freshwater]]. While some forms of plankton can move s...
5: ...of their lives (usually the larval stage). Examples of meroplankton include the larvae of [[sea urchi...
7: ...ution are sensitive to chemical and physical changes in the water.
12: Plankton are often described in terms of size. Usually the following di...
16: * Mesoplankton, 0.2 mm-2 cm - Flagellum (8951 bytes)
2: ...; 55 micrometres in length. Function: in humans, responsible for movement of spermatozoa.
4: ...or ''undulipodia'' to emphasize their distinctiveness.
8: ...h the [[lipopolysaccharides]], [[P ring]] associates with [[peptidoglycan]] layer, M ring is imbedded ...
10: ...], but with a filament attached usually only reaches 200 to 1000 rpm.
12: ... bacterial flagella may have evolved from such pores. - Microorganism (1865 bytes)
2: ...ble to the naked eye, and some multicellular species are microscopic. The study of microorganisms is c...
4: ...onomic]] structure. [[Bacterium|Bacteria]] and [[archaea]] are almost always microscopic. A number of [[eu...
6: ... time in a [[vacuum]], and some can be unusually resistant to [[radiation]].
8: ...remains and waste products, and many other processes. They can also be harmful as [[pathogen]]s when,...
10: ...reation of certain types of food, medical substances and biological weapons. - Cell wall (6206 bytes)
1: A '''cell wall''' is a more or less solid layer surrounding a [[cell (biology)|cell]...
5: ...d to describe this pressure that is induced by excess water inside the plant cell. Cell walls protect ...
7: ... [[pectic acid]]). Cells interact though [[plasmodesma]](ta), which are inter-connecting channels of c...
9: ...ts'' in the secondary cell wall that allow plasmodesma to connect cells through the secondary cell wal...
13: ...ed in to a matrix called pectin and ''hemicelluloses'', they give the plant strength and support. - Organism (3272 bytes)
1: ...n as a more or less stable whole and have properties of [[life]].
3: ...karyotes. The gap between prokaryotes and eukaryotes is widely considered a major missing link in evol...
5: The phrase ''complex organism'' describes any organism with more than one cell.
11: * [[Respiration]]
16: ... incapable of reproduction, although their [[species]] is not.
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