Term
| How old did people used to believe the Earth was? |
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Definition
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Term
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Definition
| A geologist that first thought the Earth must be millions of years old |
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Term
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Definition
| A Geologist who said that present day events occurred the same way in the past (Volcanoes, Earthquakes) |
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Term
| Who was Jean-Baptiste Lamarck? |
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Definition
| A naturalist that believed in use and disuse of organs and immediate inheritance |
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Term
| Describe the use and disuse theory |
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Definition
| If parent doesn't have an arm, offspring will not either |
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Term
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Definition
| An economist who said that if the population kept going unchecked, there would not be enough living space and food. |
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Term
| Who was Alfred Russell Wallace? |
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Definition
| A naturalist who wrote to Darwin on his ideas about natural selection |
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Term
| In what book did Darwin publish his works? |
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Definition
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Term
| What is Inherited Variation? |
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Definition
| Certain variations that are inheritable- these are very important |
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Term
| What is Artificial Selection? |
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Definition
| Human selected traits, mainly in plants |
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Term
| What is natural selection? |
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Definition
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Term
| What is struggle for existence? |
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Definition
| The competition for space, food and necessities for life |
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Term
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Definition
| The ability of an individual to survive and reproduce in its specific environment |
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Term
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Definition
| Any inherited characteristic that increases an organisms chance of survival |
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Term
| What is Descent with Modification? |
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Definition
| Species have descended with changes, from over species over time |
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Term
| What is a common descent? |
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Definition
| A single "tree of life" that links all organisms |
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Term
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Definition
| Remains of ancient life that can be considered "history of life." Allows to see how organisms change over time |
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Term
| What is Geographic Distribution? |
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Definition
| A species adaptation to environments that they live in. |
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Term
| What are homologous structure? |
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Definition
| Structures that have different mature forms but develop from the same embryonic tissues |
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Term
| What are the most common homologous structures? |
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Definition
| Limbs- arms, wings, legs, flippers |
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Term
| What are vestigial organs? |
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Definition
| Traces of the homologous structures in other organisms---Eyes of cave creatures |
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Term
| What are the three main points of Darwin's theory? |
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Definition
1. Change over Time
2. Adapt to the environment
3. Descent with modification |
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Term
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Definition
| Sequences of DNA that determine traits |
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Term
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Definition
| A specific characteristic |
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Term
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Definition
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Term
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Definition
| All genes that are present in a population |
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Term
| What is relative frequency? |
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Definition
| The number of times that the allele occurs in the gene pool |
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Term
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Definition
| The genetic makeup of an organism |
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Term
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Definition
| The physical characteristics of an organism |
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Term
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Definition
| The mixing of genes when the gametes are formed |
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Term
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Definition
| When a particular allele becomes more or less common just by chance |
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Term
| What is genetic equilibrium? |
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Definition
| Situations in which allele frequencies remain constant |
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Term
| Is genetic equilibrium good or bad? and why? |
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Definition
| Good, because if the organisms don't change, they will not evolve. |
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Term
| What are the five conditions to maintain genetic equilibrium? |
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Definition
- Random Mating
- Large Population
- No movement in or out of the population
- No Mutations
- No natural selection
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Term
| What is reproductive isolation? |
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Definition
| When the members of a species cannot interbreed and produce fertile offspring |
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Term
| What are the three different reproductive isolations? |
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Definition
| Behavioral, Geographic, Temporal |
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Term
| What is behavioral isolation? |
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Definition
| When two populations are capable of interbreeding but have difference courtship rituals (mating calls) |
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Term
| What is geographic isolation? |
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Definition
| When two populations are separated by geographical barriers (rivers, mountains) |
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Term
| What is temporal isolation? |
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Definition
| When two or more specie reproduce at different times (seasons) |
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