9thbiology Word Scramble
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| Question | Answer |
| What is the term used to descibe change over time? | evolution |
| The____ has some variations,which over time lead to variations in the traits seen in a population,and are called adaptations. | gene pool |
| What are the two types of evolutionary paths? | convergent & diverent evolution |
| What is speciation? | development of new species |
| What are the 3 main adaptations? | physiological,structual,& behavioral |
| What is a structual adaptation? | involes structure or anatomy |
| A tooth or beak shape/sticky tounge is an example of what kind of adaptation? | structual |
| What is a physiological adaptation? | assiociated with functions in organisms |
| What is an example of phsiological adaptation? | blood clotting/venom production |
| What is behavioral adaptations? | response to the environment |
| What are the methods of studying evolution history? | comparative anatomy,comparative embroyology, comparative biochmistry |
| What are homologous structures? | structures in different organisms that developed from common anscestors but became modified in different ways |
| What is a vestigial organ? | homologous structures that were used in anscestors but have become reduced in size & function in present organisms |
| What are analogous structures? | body parts of organisms that dont have common ansectory but are still similar in function |
| What is comparative biochemistry? | study of organisms on a bichemical level to see similarities and differences |
| What is comparative embryology | the study of developing organisms to show relationships not obvious in maature ones |
| What was the british ship that darwin worked on ? | HMS beagle |
| Where did the the HMS Beagle sail & what was it for? | sailed west and east coasts of south america &it was a survey ship making scientific voyages |
| What were the 3 observations in the galapogos islands that supported his belief that an organism could chnage and adapt to the changing environmental features on earth? | 1-found unique forms of life 2-similarities to some other known species didnt exist 3-said similar organisms were related to a common form |
| nature selecting organisms with desired traits and variety is called.. | selective breeding |
| What are the 6 steps in darwins theory of natural selection? | 1-nature has a tendency toward overpopulation 2-not all offspring survive 3-variations exists in populations 4-variations are inherited 5-individuals with suitable variations will survive than those not suitable 6-whole population will adapt over time |
| The genotypes of an ____ may remain constant but the genes change over time | individual |
| What is population genetics? | study of gene pool & how theyy change |
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