Term
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Definition
| Study of the relationships between living organisms. |
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Term
| Define Biosphere. Give an example. |
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Definition
| Layer around the Earth where all the living organisms are found. Example: Water, Air, Soil. |
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Term
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Definition
| Physical, chemical and biological conditions acting on an organism. |
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Term
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Definition
| A major ecological community of organisms adapted to a particular climatic or environmental condition on a large geographical condition on a large geographical area in which they occur. |
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Term
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Definition
| A system that includes all living organisms (biotic factors) in an area as well as its physical environment (abiotic factors) functioning together as a unit. |
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Term
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Definition
| An ecological unit composed of a group of organisms or a population of different species occupying a particular area usually interacting with each other and their environment. |
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Term
| Define population. Give an example. |
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Definition
| Group of organisms of one species that interbreed and live in the same place at the same time. Example; Deep population. |
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Term
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Definition
| The natrual home or environment of an animal, plant or other organism. |
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Term
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Definition
| The position or function of an organism in a community of plants and animals. |
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Term
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Definition
| Individual belonging to a group of organisms (or entire group itself) having common characteristics and (usually) are capable with mating and producing fertile offspring. Failing that (for example the Liger) it has to be ecological and recognisably the same. |
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Term
| Describe Jean-Baptiste Lamark's evolution theory? |
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Definition
| Lamarck believed that simple life forms continually came into existence from dead matter and continually became more complex -- and more "perfect" -- as they transformed into new species. Unlike Darwin, Lamarck held that evolution was a constant process of striving toward greater complexity and perfection. |
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Term
| Describe Darwin's theory of evolution? |
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Definition
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More organisms are produced than can survive because of limited resources.
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Organisms struggle for the necessities of life; there is competition for resources.
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Individuals within a population vary in their traits; some of these traits are heritable -- passed on to offspring.
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Some variants are better adapted to survive and reproduce under local conditions than others.
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Better-adapted individuals (the "fit enough") are more likely to survive and reproduce, thereby passing on copies of their genes to the next generation.
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Species whose individuals are best adapted survive; others become extinct.
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Term
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Definition
| The careful obsevation and analysis of the geographic distribution of organisms |
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Term
| Define Functional Morphology. |
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Definition
| Relationship between form and function |
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Term
| Explain homologous and analogous features. Give an example of each. |
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Definition
analogous=similar in function but not evolutionary origin
insect wing vs a bat wing
homologous=similar in function and in evolutionary origin
horse leg vs a donkey leg
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Term
| Define Artificial Selection. |
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Definition
| Breeding his own pigeons, conducting thousands of experiments in his gardens and greenhouse and bombarding professional breeders with questions. |
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Term
| Define Comparative Embryology. |
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Definition
| Looking for similarities and differences in the development or organisms. |
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Term
| Define Molecular Analysis. |
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Definition
| Using our current methods of analysis to examine molecular similarities between organisms. |
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Term
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Definition
| Changes to allele frequency as a result of chance; such changes are much more pronounced in small populations. |
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Term
| Describe the Hardy-Weinberg Principle. |
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Definition
| Quantify a gene pool-the genetic information of an entire population-by measuring each allele frequency. This, evolutionary changes in populations can be measured in part by looking for changes in allele frequencies. |
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Term
| Describe the Hardy-Weinberg Principle. |
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Definition
| Quantify a gene pool-the genetic information of an entire population-by measuring each allele frequency. Thus, evolutionary changes in populations can be measured in part by looking for changes in allele frequencies. |
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Term
| Five Requirements (Hardy-Weinberg Principle). |
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Definition
Population is very large.
Mating opportunities are equal.
No mutations occur.
No migration occurs.
No natrual selection occurs- all individuals have an equal chance of reproductive success. |
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