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bio darwin&populatio
| Term | Definition |
|---|---|
| what is the term for a feature that allows an organism to survive better in its environment | adaptation |
| all the individuals of a species that live in a particular area are called | Population |
| remnant of a organ that had a function n an early ancestor is known as a | vestigial structure |
| what observations did Charles Darwin make about finches in the Galapagos Islands | different species of finches lived on different islands |
| the tortoise from Abingdon Island, shown in figure 10.1 would likely be better adapted than the Albermarle Island tortoise to which of the following environments | areas with lots of taller plants |
| which theory states that floods and earthquakes have occurred often in earth's history | catastrophism |
| the hind leg bones shown in the whale in figure 10.2 are examples of | vestigial structures |
| Charles Darwin found fossils that looked like ancient versions of living species. from this evidence Darwin suggested that Earth was | much more than 6,000 years old. |
| what is the process in which humans reed organisms for certain traits | artificial selection |
| individuals that are well adapted to their environment will survive and produce | more offspring |
| natural selection results in change over time by acting on traits that are | heritable |
| what is the study of the distribution of organisms around the world | biogeography |
| fossil evidence show that structures considered vestigial in living organisms | were useful to their ancestors |
| which theory ties the fields of biology and geology together | evolution |
| the beak types of different Galapagos finch species are examples of | adaptations |
| all the bald eagles in an area is an example of a | population |
| Charles Lyell developed a theory that states that geologic process that shaped earth in the past have stayed the same throughout time. This is the theory of | uniformitarianism |
| Figure 11.1 shows how a population of cacti changes when it faces selective pressure from two predators:peccaries (wild pigs) &a parasitic insect. the dashed line shows the original population. the insects most often kill cacti with an | high number of spines |
| what type of selection occurs when individuals in a population with the intermediate phenotype are selected for | stabilizing selection |
| Figure 11.2 shows the tail feather length of male widowbirds & their reproductive success. the males that had the greatest reproductive success were the birds with tails that were | relatively long |
| when a few individuals start a new colony it most likely results in | genetic drift through the founder effect. |
| the movement of alleles from one population to another is called | gene flow |
| a population that has a normal distribution of the range of heights has many individuals who are | average height and few who are very tall or very short |
| the false idea that a high-jumper who trains to become a champion will have descendants who can jump exceptionally high is known as the | inheritance of acquired characteristics |
| the small, non-functional pelvic bones of a boa constrictor are examples of | vestigial structures |
| In the Galapagos Islands, Charles Darwin saw different species of finch on different islands. This led him to theorize that species | can adapt to their environment |
| which of the following lists the four main principles of the theory of natural selection | adaptation, descent with modification, overproduction, variation |
| Dog breeds, such as beagles, Border collies, and German shepherds, were produced by the process of | artificial selectcion |
| as an environment changes, and some organisms have a higher fitness than others, natural selection acts directly on | existing variations |
| if two species have similar DNA sequence, it would indicate that they | share a common ancestor |
| what evidence for a past evolutionary relationship ;can be seen in different groups of vertetbrates | similar features in early stages of embryos |
| the DNA sequences of whales and ungulates,or hooved animals, are very similar. what type of evidence of evolution is this | molecular |
| the combined alleles of all the individuals in a population is called the | gene pool |
| what are two main sources of genetic variation | mutations and recombination |
| a population of squirrels that contains a wide range of phenotypes has a | large amount of genetic variation |
| Figure 11.1 shows the change in a cactus population under pressure form peccaries (wild pigs) and parasitic insects. the dashed line shows the original cactus population. what type of selection does the graph show | stabilizing |
| disruptive selection occurs when selective pressures favor phenotypes that are | at both extremes |
| what occurs when some elephants in a population migrate into another area and join another population | gene flow |
| a rive has cut a deep canyon that has separated a population of rodents into two groups. this separation is an example of what type of isolation | geographic |
| the wings of robins and the wings of dragonflies are examples of | divergent adaptation |
Created by:
ZekeN