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
AP Focus 9
Evolution and the First Cells
| Question | Answer |
|---|---|
| Species originating from a common ancestor and becoming increasingly different in genetic composition | Divergent evolution |
| Species becoming more similar due to adapting to similar evironmental conditions (form analogous structures EX. dolphin and shark) | Convergent evolution |
| Related species making similar genetic changes after diverging from a common ancestor | Parallel evolution |
| Evolution in one species leads to evolutionary change in another species (EX. many symbionts such as bees and flowering plants) | Coevolution |
| Theory that evolution occurs very gradually over long periods of time by the accumulation of many small genetic differences | Gradualism |
| Theory that evolution may occur in rapid starts followed by pauses. Radicalm environmental change or other events such as polyploidy may lead to sudden changes. | Punctuated equilibrium |
| Chemicals combining with the energy input of volcanoes, lightening, and solar radiation in the early primordial soup of water, simple chemicals, and no free oxygen lead to the formation of organic macromolecules then the first cell | Oparin and Haldane Theory |
| simulated early earth in a glass apparatus using electrodes as lightening and heat and pulled out several organic macromolecules such as ATP and amino acids | Miller and Urey experiment |
| The first cells but probably lacked capacity to reproduce | Protobionts |
| Utilized proteinoids- inorganically formed proteins, other inorganically formed food resources, and each other for nutrition | Heterotrophic cells |
| Had an advantage since they could synthesize own food and changed the atmosphere with the production of free oxygen and thus ozone (no more spontaneous generation) | Autotrophic cells |
| Evidence of early cyanobacteria | Stromatolites |
| Originated from endosymbiosis | Eukaryotic cells |
| Endosymbiosis | One cell taking in another that would live as a symbiont inside it (origin of organelles such as mitochondria) |
| Supports for endosymbiosis | Mitochondria and chloroplasts have their own DNA, are similar size to many bacteria, undergo a binary fission-like process, and have membranes with distinct proteins |
Created by:
AliRutherford
Popular Biology sets