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52 Cards in this Set
- Front
- Back
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What is science
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science is a body of knowledge and a process for gaining knowledge about our world as a result of info which is learned using carefully planned study methods
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WHat is biology
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biology is the study of living things, the process of living things, interaction between living thing and living thing, and non living things
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What is the sicentific method
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the technique used to solve problems and gain info though logical thinking, the squence is critical
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steps of the scientific method
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Define the problem, Gather relevant research, make hypothesis, test it, record observations, and draw a conclusion
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DIfference between an independent variable and a dependent variable
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AN independent variable is the factor tht manipulates your set-up in ourder to test the hypothesis and the dependent variable changes as result to the independent variable
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control
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second set-up with no variable involved for comparison reasons
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Conclusion are based on what
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the outcome not the hypothesis-if the experiment supports the hypothesis it has been verified
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if hypothesis is varified ....
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retest results and record and share them
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what is the metric system
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most commonly used system based on units of ten aNd is more accurate and easier to use
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What are the prefixes
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kilo, hecto, deka, base unti, deci, centi, milli, micro
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how are liquids measured
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they are measured in a graduated cylinder liquid is poure d onto the mwniscus and read from the bottom of it
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What is the freexing point, and boiling point of water, and what is the normal body temp
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0 degrees celcius, 100 degrees celcius, and 37 degrees celcius
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can u add or subtact unlike units units
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no u can unlike add or subtract like untis
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WHat is a data table used for
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to record numerical data
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what do bar grpahs show
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the only show comparisons
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what do line graphs show
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they show relationships between 2 variables
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where is the independent and dependent variable on a line graph
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the independent is on the x and dependent on the y
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what does every grpah need
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units, title, key/legend
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Taxonomy is ...
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the sicence of classification
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hwy do we classify
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common language, structural similarities, and ancestrial similarites
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List the the levels of classification in order from general to most specific
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kingdom, phylum, class, order, family, genus, species
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Speicies is ....
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a group of organism that are similar in structue, can mate under natural conditions to produce feritle offspring
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What is the linnean classification system
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uses homologies to group species into larger or more general catigories and is the foundation for more modern classification
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What is binomial Nomenclature
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the two name namming system-> first name is genus and is capitalized or underlined/italicized second name is epithet name-> DONT CAPITALIZE and underline/italicize
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what is the 5 kingdom classification system
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if it is prokaryotic or eukaryotic, mutlicellular or unicellular, sexual or asexual, autotrophic or hetertrophic, aerobic or anaerobic, homologous, analogous, or vestigal structures
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What is the diff between prokaryotic and eukaryotic
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eukaryotic is complex and prokaytoic is simple
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What is the diff bewtween autotrophic and heterotrophic
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Autotrophic sythesizes own food heterotrophic feeds off other organisms
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what is an homologous structre
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are similar anatomically but different in purpose
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what is an analogous structure
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similar functions but are different anatomically
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Vestigal structures
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serve no purpose but have been passed own through generations
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WWhat are the 5 kingdoms
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monera, plants, protista, animal, fungi
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3 characterisitcs of monera are..
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prokauyotic, small circular DNA w/e protiens, reproduce thorugh fision or budding,lack membrane-bound organelles
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What is the diff between archaea and eubacteria
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Archaea has distinct ribosomal RNA and represnts first organisms Eubacteria is autotrophic or heterotrophic or aerobic or anaerobic
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3 characteristics of protista are...
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eukaryotic microorganisms, typically aquatic, and is the left over kingdom ie:amoebas and algae
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3 characteristics of fungi are ...
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eukaryotic, multicellular w/ cell walls, heterotrophic decomposers, and non-mobile ie: molds and mushrooms
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3 characteristics of plants ...
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eukaryotic, multicellualr w/ cellulose cell wall, photoautotrophiv ie trees mosses ferns
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3 characteristics of Animalia
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eukaryotic, motile, multicellular, &heterotrophiv
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what is the human phylogeny
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Kingdom= animalia -> Phylum=chordata -> class= mammalia -> order=primates -> family=hominidae -> Genus= HOMO -> species -> homo sapiens
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primates can ...
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see in 3-D, have complex brains and athumbs and flexible shoulders
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humans are primates b/c ..
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we have thumbs, brains, & 3-D eyes nucleotide sequences in DNA,humans probaly evolved form african apes
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what is life
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no single definition
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Metabolism is
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the chemical reaction occuring within the cells of an organism
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Respiration is..
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how an organism OBTAINS ENERGY from food in order to live
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Nutrition is ...
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All actvities done to get materails from enviro and prepare them for use
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Steps of nutrition
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indegestion -> taking material form enviro degestion -> breaking them down Egrestion -> oassing of waste that can't be digested or used
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Excertion is ...
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removal of waste products that an organism itself has made
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Transport is ...
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Aborsptions & distrobution of material whtin
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Synthesis is ..
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process by which organism builds large molocules fom little ones
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Growth is ....
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using sythesis to increase cell size/number
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Reproduction is ...
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production of new individuals that must occur efor species to survive
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Regulation is ...
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response to stimuli
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Homeostasis is ...
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condition of a constant internal enviro at all times ie body temp amount of glucose
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