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| Version | User | Scope of changes |
|---|---|---|
| Sep 21 2007, 10:36 AM EDT (current) | John_Hunter | 77 words deleted |
| Sep 20 2007, 11:03 AM EDT | John_Hunter | 77 words added |
Changes
Key: Additions Deletions
Biology-the science of life or living matter in all its forms and phenomena, esp. with reference to origin, growth, reproduction, structure, and behavior.
Cells- a usually microscopic structure containing nuclear and cytoplasmic material enclosed by a semipermeable membrane and, in plants, a cell wall; the basic structural unit of all organisms.
Tissue-an aggregate of similar cells and cell products forming a definite kind of structural material with a specific function, in a multicellular organism.
Photosynthisis-The process in green plants and certain other organisms by which carbohydrates are synthesized from carbon dioxide and water using light as an energy source. Most forms of photosynthesis release oxygen as a by-product
Atom- unit of matter, the smallest unit of an element, having all the characteristics of that element and consisting of a dense, central, positively charged nucleus surrounded by a system of electrons. The entire structure has an approximate diameter of 10-8 centimeter and characteristically remains undivided in chemical reactions except for limited removal, transfer, or exchange of certain electrons.
Molecule-the smallest physical unit of an element or compound, consisting of one or more like atoms in an element and two or more different atoms in a compound.
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Homeostasis-the tendency of a system to maintain internal stability, owing to the coordinated response of its parts to any situation or stimulus tending to disturb its normal condition or function.
Nucleus- central part about which other parts are grouped or gathered; core
| Mitochondria-an organelle in the cytoplasm of cells that functions in energy production. |
| Life: All things that live null Domain: The broadest range of classification for life, under which falls kingdom, phylum, class, order, family, genus, species. There are currently three domains, and they are Archaea, Bacteria, and Eukaryota null Kingdom: Kingdoms are a very broad, but smaller level of classification. Under this falls Phylum, class, order, family, genus, species. There are currently six kingdoms: anamalia, plantae, fungi, protzoa (in the eukaryota), null Phylum: The next classification level, with a much greater number conatining 35 different classification groups. Under this falls class, order, family, genus, and species. Phylum is the first real classification level where the organisms in it show similar evolutionary traits. null Class: Now getting under class, organisms begin showing many similarities with others of its group. The rank of class also includes many terms people know, such as mammalia (or mammal). There are a great deal more classes then there are phylums, because the requirements becomes more refined and fewer organisms fit into each class. Below this is order, family, genus, and species. null Order: The next step down after class. null Family: Yet another step down after order. It refines organisms with particular, specific characteristics into similar groups. Organisms at this stage usually look similar. null Genus: Second to last classification level. This makes up part of an organisms scientific name. such as "Homo sapien" DNA- deoxyribonucleic acid: an extremely long macromolecule that is the main component of chromosomes and is the material that transfers genetic characteristics in all life forms, constructed of two nucleotide strands coiled around each other in a ladderlike arrangement with the sidepieces composed of alternating phosphate and deoxyribose units and the rungs composed of the purine and pyrimidine bases adenine, guanine, cytosine, and thymine: the genetic information of DNA is encoded in the sequence of the bases and is transcribed as the strands unwind and replicate. Ecosystem: All the living and non-living things in a certain area. none Ecology: The study of how living things interact with their environment. none Autotrophs: Organisms that get energy from the sun or chemical reactions, commonly called producers. none Heterotrophs: Organisms that get their energy from other organisms because they cannot produce it themselves. none Cristae- One of the inward projections or folds of the inner membrane of a mitochondrion. Matrix- the intercellular substance of a tissue. How Do You Say Biology? Arabic: بيولوجيا: عِلْمِ الأَحْياء Chinese (Simplified): 生物学 Chinese (Traditional): 生物學 Czech: biologie; biologický Danish: biologi Dutch: biologie Estonian: bioloogia Finnish: biologia French: (de) biologie German: die Biologie Greek: βιολογία Hungarian: biológia Icelandic: líffræði Indonesian: biologi Italian: biologia Japanese: 生物学 Korean: 생물학 Latvian: bioloģija; bioloģijas- Lithuanian: biologija Norwegian: biologi Polish: biologia Portuguese (Brazil): biologia Portuguese (Portugal): biologia Romanian: (de) biologie Russian: биология Slovak: biológia; biologický Slovenian: biologija Spanish: biología Swedish: biologi Turkish: biyoloji |
