Class notes
BIO 101 chapter #1 Notes
- Course
- BIO 101
- Institution
- Northern Virginia Community College - Annandale
Organic notes from Bio lecture. Full chapter 1 notes reviewed and expanded for further understanding.
[Show more]
Seller
Follow
Content preview
What is life?Response to the environment-Reproduction-Growth and development -Energy processing-Regulation-Evolutionary adaption-Living creatures adapt their environment either being by camouflaging, developing abilities through evolution. Evolution shows different changes that this creatures make in order to survive.Themes that connect concepts of biology:To explain biological organizationEmergent properties(as you go up to the next level)If you have multiple properties per ex. Nails, wood, and paint the properties will change when you make a chair with them. §-Reductionism/ Hierarchy(zooming in into details)Combination of components that come together§-Systems biologyTo construct a model to explain. Successful models can also predict how change will affect (ex. Acid Rain)§-1.Reductionism/Hierarchy-The biosphere-Ecosystems-Communities -Populations-Organism-Organs & organ systems-Tissues-Cells-Organelles-Atoms-MoleculesEcosystemsPolar BearSeal ========> water/krillArtic FoxWolvesOrgan system: Respiratory system=> Lungs=>Tissue=>Collection of cells=>cell=>organellesNucleus of a cell contains DNAMolecule: DNA= Deoxyribonucleic AcidAtom: C, H, O, N, P.TaxonomyThe DIVERSE living forms into 3 domainsBacteria-Archaea (Extremophiles -live in very extreme conditions)-Eukaryotes-Domain -Kingdom -Phylum -Class -Order -Family -Genus -SpeciesDear King Phillip Came Over For Good SpaghettiTheory of Evolution seems to be the best explanation so far….Natural selection-Charles Darwin -ex. Finches in the Galapagos.Only best adapted creatures can survive and pass on genes to next generation. (The natural environment "Selects" for beneficial traits)○-Population with varied inherited traits. (Different colors, shapes, etc.)1.Elimination of individuals with certain traits2.Reproduction of survivors3.Increasing frequency of traits that enhance survival and reproductive success.4.How scientists studyInquiry -the 'search for info' and explanation are of main formsHypothesis & predictions -(you perform scientific experiments to check this)1.Both these leads to accumulation of data can be qualitative or quantitative.This has to be analyzed, reviewed-The expts. designed have to be carefully planned-Deciding sample size-Variables (independent, dependent, standardized)-Hypothesis based scienceWhat causes…? A tentative answer to a well framed question --an educated guess based on experiments and data. Deductive reasoning (if, then logic)-HypothesisMust be testable-Must be falsifiable (proved right or wrong)-Observations & questions -(theories arise from this)Theory -Describe, observeAll types of cellsProkaryoticArchaea○BacteriaX100 smaller than a Eukaryotic§Doesn't have a nucleus but instead a nucleoid region§○-Eukaryotic○Have a cell which has a nuclear membrane(with DNA inside)§Plantae§Animalia§Fungai§Protist -Always single celled able to be animal-like-
& plant-like. Ex. mildew (different from prokaryotic)Chapter 1 -The Scientific Study of LifeMonday, August 21, 20231:31 PM
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller dianaroman0507. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $5.69. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
79373 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now