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| What are homologous structures? |
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Definition
| Homologous structures are those that have different mature forms in different organisms but develop from the same embryonic tissues. |
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Term
| Define binomial nomenclature. |
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Definition
| Binomial nomenclature is a classification system in which each species is assigned a two-part scientific name. |
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Definition
| Adaptation is an inherited characteristic that increases an organism's chance of survival. |
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Definition
| Cell theory is the idea that all living things are composed of cells, cells are the basic units of structure and function in living things and new cells are produced from existing cells. |
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Term
| Name the three parts of a nucleotide. |
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Definition
| Nucleotides consist of a 5-carbon sugar, a shosphate group and a nitrogenous base. |
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Term
| What are proteins made from? |
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Definition
| Proteins are macromolecules that contain carbon,hydrogen, oxygen and nitrogen. Proteins are needed by the body for growth and repair and to make up enzymes. |
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Definition
| Evolution is the process by which modern organisms have descended from ancient organisms. |
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| What is scientific theory? |
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Definition
| A scientific theory is a well-supported testable explanation of phenomena that have occurred in the natural world. |
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Definition
| Fossils are the preserved remains of ancient organisms. |
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Term
| What was the contribution of scientists James Hutton and Charles Lyell? |
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Definition
| Hutton and Lyell helped scientists recognize that the Earth is many millions of years old, and the processes that changed Earth in the past are the same processes that operate in the present. |
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Term
| What is Lamarck's theory of evolution? |
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Definition
| Lamarck proposed that by selective use or disuse of organs, organisms acquired or lost certain traits during their lifetime. These traits could then be passed on to their offspring. Over time, this process led to change in a species. |
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