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
DC Bio test 1
| Question | Answer |
|---|---|
| what is reductionism? | process of breaking down or reducing complex systems to simpler components |
| 7 characteristics of living things | organized, aquire materials & energy, reproduce, respond to stimuli, maintain homeostasis, grow & develop, adapt to environment |
| organized how? | atoms-molecules-organelles-cells-tissues-organs-organ systems-oganism-population-community-eco system-biosphere |
| prokaryotic cells | lack organelles, DNA is not in a membrane-bound nucleus |
| prokaryotic example | bacteria |
| Eukaryotic cells | has organelles, DNA is in a membrane-bound nucleus |
| Eukaryotic example | animals, plants, fungi... |
| taxonomy | discipline of classifying &id organisms according to specific classification |
| energy | abilty to do work, food provides it |
| asexual repro. | simple organisms |
| sexual repro. | allows genetic diversity |
| systems biology is what? | putting together rather than taking apart; look at parts that make whole |
| systems biology used for? | studying life, study of cells and molecules(genome project) |
| useful components to gather info for systems biology | high-throughput technology, bioinformatics, interdisciplinary research teams |
| example of reductionism | watson and crick: DNA model |
| discovery science | involves careful observation & analysis of data as accurately as possible; deductive reasoning |
| discovery science example | Jane Goodall: chimps |
| hypothesis-based | involves proposing & testing of hypothetical situations or experiments |
| inductive reasoning | generalizations based on specific observations; small actions combine to result in larger event |
| deductive reasoning | moves from general to specific; large ideas are broken down; If, then logic |
| scientific method steps | state question, make hypothesis, do experiment, gather data, make conclusions, retest |
| theory | broader than hypothesis; general; supported by evidence |
| example of theory | Kingdom Theory of Bio. Diversity |
| binomal nomenclature rules | first word capitalized(genus), second word lower-cased(species), if typed-italics, if written-underlined |
| types of symmetry | asymmetry,radial, biradial, bilateral, spherical |
| asymmetry definition & example | no symmetry; example- sponges |
| radial definition & example | radiating from center point; most simple body sym.; example- sand dollar, star fish |
| biradial def. & example | rare form; only 2 planes passing through longitudinal axis resulting in 2 truely similar halves; ex- box jellyfish |
| bilateral def. & example | left and right sides exactly the same; most common type; promotes active locomotion/movement; favors central nervous system in head; ex-most advanced organisms/mammals |
| spherical def. & example | perfect ball shaped; least common type; ex- algae(volvox) |
| anterior | front/head region |
| posterior | back/tail/hind region |
| dorsal | back/top- "upper" |
| ventral | front/bottom- "belly" |
| caudal | tail |
| cephalic/cephal | head |
| distal | away from the body; farther |
| proximal | close to the body; closer |
| superior | toward head region; example: superior vena cava vein |
| inferior | away from head region; example: inferior vena cava vein |
| Planes- frontal(coronal) | divides body into dorsal(top/back) and ventral(bottom/front) halves |
| planes- transverse | divides into anterior(front/head) and posterior(back/tail/hind) halves |
| planes- sagittal | logitudinal cut that cuts in right & left sides |
| planes- median | an imaginary plane dividing the body into right & left in the middle/inside; is a sagittal plane; not all the way through |
| species | group of individuals who can breed & produce fertile offspring |
| what is a cladogram? | a diagram that shows a relationship between four or more relatives; share a common ancestor at root of tree; older org at bottom |
| what is speciation? | formation of a new species |
| what does the "v" in the cladogram represent? | the event that caused the speciation |
| what is a clade? | group of organisms that come from a common ancestor |
| phylogenic diagram(tree) is also called? | a cladogram |
| monophyletic | pertains to taxon that is derived from a single ancestoral species- only legitimate cladogram |
| polyphyletic | members are derived from 2 or more ancestors not common to all members; example- chimp & human |
| paraphyletic | pertains to a taxon that excludes some members that share a common ancestor with members included in the taxon |
| what is a branching diagram also called? | phylogenetic tree |
| what is a phylogenetic tree used for? | to summarize evolutionary relationships |
| differences in cladogram & phylogenetic tree: | phylo's branches represent REAL evolutionary lineages; phylo branch length represents TIME or AMOUNT OF EVOLUTIONARY CHANGE; cladograms' branches should match that of the phylo but are not to scale |
Created by:
annahiles
Popular Biology sets