Term
| Most fossils are found in what type of rock? |
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Definition
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Term
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Definition
| It is an impression left behind and filled in with minerals from water. |
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Term
| What is permineralization? |
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Definition
| When minerals in water form around hard structures (shells, bones, teeth) |
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Term
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Definition
| They are a record of life activities (footprints, burrows) |
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Term
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Definition
| Tree sap that hardens to trap a creature. |
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Term
| What are preserved remains? |
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Definition
| Objects buried in ash, ice, or bogs |
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Term
| If 14C has a half life of 5700 years, and there are 1000 atoms of 14c, how much 14c will be left after 11400 years? |
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Definition
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Term
| 14C decays in 14N. If the ratio of 14C to 14N in one sample is 1:1 and in another sample is 1:3, which sample is older? |
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Definition
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Term
| What do missing link fossils do? |
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Definition
| They show connections between groups of organisms. Example-archaeopteryx and basilosaurus Note: Archaeopteryx is pronounced Ar-kee-OP-ter-ix not Ar-kee-o-Ter-ix.... :) |
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Term
| What are homologous structures and what leads to the creation of them? |
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Definition
| Homologous structures are similar body structures with very different functions. Different environments lead these adaptations. |
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Term
| What are vestigial structures? |
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Definition
| They are organs which have lost most or all their original function. Example- wisdom teeth. |
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Term
| True or false. The human, fish, reptile, and bird embryos in their very early stages are very different. |
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Definition
| False. The embryos are very similar. |
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Term
| What things are compared between species in biochemical evidence? |
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Definition
| DNA, amino acids, and proteins. |
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Term
| Similarities in embryo development indicates what? |
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Definition
| That the organisms shared a common ancestor |
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Term
| Due to antibiotic resistance, what is happening to bacteria and ease for treating bacteria? |
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Definition
| The bacteria are not being affected by the antibiotics, and are therefore becoming harder to treat. |
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Term
| What happens because of pesticide resistance? |
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Definition
| Pests aren't affected by the pesticides, so they destroy the crops. |
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Term
| The first life on Earth were? |
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Definition
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Term
| True or false. Much evidence indicates life on Earth has common ancestors. |
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Definition
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Term
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Definition
| The study of the distribution of organisms around the world |
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Term
| What are analogous structures? |
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Definition
| Structures that perform a similar function but are not similar in origin. Example- Bat's wings and a fly's wings. |
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