Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
BIO FINAL EXAM
| Term | Definition |
|---|---|
| 3.5/4 | Life originated ___ to ___ years ago. |
| monomers macromolecules protocells living cells | 4 stages of origin of life |
| Monomers | Simple organic molecules, evolved from inorganic compounds |
| Macromolecules | (polymers) organic monomers joined into larger ______ |
| protocells | first cell precursors; polymers became enclosed in a membrane |
| living cells | protocells acquired the ability to self-replicate |
| chemical | Stages 1-3 involve the processes of ____ evolution & occurred before the origin of life |
| biological | stage 4 is when life first evolved through the processes of _____ evolution |
| RNA | It is hypothesized that ___ was the first self-replicating macromolecule |
| prokaryotes | the first true cells were |
| natural selection | life adapts to its environment through the ____ _____ of organisms with traits that are better for the surrounding environment. |
| charles darwin | first presented the concept of natural selection |
| variation | individuals vary in physical characteristics that can be passed on |
| competition | even though individuals produce many offspring, the overall population size stays the same due to limited resources which creates ______ |
| adaptation | members of a population with advantageous traits capture more resources and are more likely to reproduce |
| fossils | remains of species that lived at least 10,000 years ago and up to billions of years ago |
| transitional fossils | have characteristics of 2 different groups |
| homologous | structures that are anatomically similar because they are inherited from a common ancestor |
| analogous | structures that serve the same function but are not constructed similarly; nor do they share a common ancestry |
| vestigial | structures that are fully developed in one organism but are reduced and may have no function in others |
| archaea | single-celled prokaryotic organisms. live in extreme environments. incredibly stable cellular membrane |
| bacteria | single-celled prokaryotic organisms. can cause disease. found everywhere |
| eukarya | organisms whose cells contain a nucleus. unicellular and multicellular |
| animalia | humans belong to the kingdom ______ |
| heterotrophs | organisms that cannot produce their own food |
| autotrophs | produce their own food |
| chordata | human's phylum |
| mammalia | human's class |
| primates | the order of mammals that is arboreal (adapted to living in trees) |
| prosimians | lemurs, tarsiers, & lorise |
| anthropoids | monkeys, apes, & humans |
| hominidae | human's family |
| biosphere | portion of the earth that contains living organisms |
| ecosystem | a specific area of the biosphere where organisms interact with each other and with the physical and chemical environment |
| terrestrial | ecosystem: collection of living organisms interacting with non-living components on land |
| marine | ecosystem: collection of living organisms interacting with non-living components in aquatic environments with high levels of salt |
| freshwater | ecosystem: collection of living organisms interacting with non-living components in freshwater aquatic environments |
| lentic | freshwater ecosystem: still water (lakes, ponds, etc) |
| lotic | freshwater ecosystems: running water (rivers, springs, etc) |
| estuaries | where fresh and saltwater mix; are one of the most diverse aquatic ecosystems |
Created by:
user-1994765
Popular Biology sets