Chapter One PDF - Learning About Life

DMR P NK notes DNR Learning about life Chp1 11 Biology the scientific study of life Science is the approach to understanding things explorat...

DMR P NK notes DNR Learning about life Chp1 11 Biology the scientific study of life Science is the approach to understanding things exploration phase of inquriy data evidence scientific hypothesis explanation of set observation must be testable falsifiable f experiments scientific test explore hypothesis prediction expriment how expremiment turns out effect hypothesis prediction DMR P NK notes DNR Communication Outcomes scientist rely heavily on scientific literature science is repetative nonlinear ways of communicating results seminars meetings personal communication scientific pub before publication is peer review which acts as control more additional quality evidence seal of approval anonymous experts a Exploration Marco findin an issue worked questioning it Communication Tesfing Outcomes sharing data making hypothe t builds knowledge feedback running experiments solves issues building consensus getting data benifitsthe makes work supported with conculsions world DMR P NK notes DNR Theory is a broader observation much as it widely accepted by scientists comprehensive well substantiated observation only when there explains is a.fr Ei i Fact Law is a hard truth based on current data evidence DMR P NK notes DNR Controlled Experiments Variables are factors that change in an experiment typically one factor changes in an experiment controlled experiment compare two or more groups that differ only in one variable thats being tested Control groups vs experimental group lack of change factors being altered Independent vs Dependent variable variable Whats is being the effect of manipulated the change measurabl DMR P NK notes DNR Single blind experiment when information is with held from test subjects Double blind experiment information is withheld from test subjects experimenter eliminates bias gold standard for experiment Placebo acts as a control inblined studies ineffective treatment Pseudoscience any field that is falsely presented as having a scientific basis decause mass amount of information typically by loaded in anecdotal evidence assertion based on a single few examples DMR P NK notes DNR 12 Properties of life properties of life has a scientific order process e codeh has 4 letters w has cells growth development evaluation enviormental pressure regulation home ostas reproduces responses to environment 13 Major Themes in Biology Unifying themes in biology Organization Information flow Pathways that transform energy matter Interactions within bio systems Evolution DMR P NK notes DNR Organization Structure to function are related the way something is made add to its function example the parts of the lung aid to it fancition of helping the organizin breath e Information flow Information must be received transmitted used in order for life to function genes are hereditary units of information with sequences of DNA passed on from previous generations DMR P NK notes DNR Pathways movement growth repordation cellular activites of life require energy the input from the sun the transformation of energy from one another makes life possible host ecosystems are solar powered process of photosynthesis sun energy is converted into chem energy storing it as chem bonds within sugar Organisms use food for energy by breaking chemical bounds to realsed stored energy to be used to in building block for new mole as needed by organism DMR P NK notes DNR conversion bw within organisms energy is converted to heat realised to the enviorment energy flow starts as light ends as heat matter is recyled within an ecosystem living cells metabolism continually convert from one form to another as matter is energy recycled When transformation is disrupted dire energy consequences happen when even a single protein within a pathway becomes inhibited cells lose the ability to extract the stored in chemical bonds energy of glucose DMR P NK notes DNR Interactions within Biological Systems life is on a global level biological organization biosphere all earths life where it exists ecosystems all living organisms in particular area communities all animals in an ecosystem populations some species that interact with each others Organism single living thing organ system organism body's system tissue cells DMR P NK notes DNR life is distinguished Evolution unity diversty of the world the process of change that has transferred earths life forms Natural selection the idea where certain inherited traits are more likely to survive reproduce Unequal reproductive success some individuals have more successful at reproducing