Presentation on theme: "Quiz #1 1. Which level of life includes all of the other levels in the list: organisms, cells, biosphere, molecules, and ecosystems? Explain your answer."— Presentation transcript:
1 Quiz #11. Which level of life includes all of the other levels in the list: organisms, cells, biosphere, molecules, and ecosystems? Explain your answer.2. Identify an Ecosystem in the area where you live? Explain why it is an Ecosystem.3. What are genes? How are they related to DNA?
2 Concept 1.1Biology explores life from the global scale to the microscopic scale.Objective Identify major organizational levels of life.Key Terms Biosphere, ecosystem, organism, cell, DNA, gene
3 Biosphere Ecosystem Community Population Organism Organ Systems Organs Florida coastCommunityAll organisms onthe Florida coastPopulationGroup of brownpelicansOrganismBrown pelicanOrgan systemNervous systemOrganBrainTissueNervous tissueCellNerve cellOrganelleNucleusMoleculeDNAAtomSpinal cordNerveEcosystemCommunityPopulationOrganismOrgan SystemsOrgansTissueCellOrganelleDNA and Genes (Molecule)Atom
4 Levels of Organization (large scale) BiosphereAll the part of the planet inhabited by living organisms.
5 Levels of Organization (large scale) EcosystemBoth living organisms and non-living or physical components of environment in a particular area
6 Levels of Organization (large scale) CommunityAll interacting organisms in an area (living component only)
7 Levels of Organization PopulationIndividuals of one species living in same area
8 Levels of Organization OrganismAn individual living thing
9 Levels of Organization (within an Individual) Organ Systemsgroup of organs that work together in performing vital body functionsexcretory, nervous
10 Levels of Organization (within an Individual) liverOrgansstructure consisting of several tissues adapted as a group to perform specific functionsliver, intestine
11 Levels of Organization (within an Individual) Tissuesintegrated group of cells with a common function, structure, or bothBone tissue
12 Levels of Organization (within an Individual) Cells-most basic unit of life.can perform all functions necessary for life.red blood cell
13 Levels of Organization (within an Individual) DNA- The Chemical responsible for inheritanceGenes- Units of inherited informationMolecules- Cluster of atomsDNA, lipid, carbohydrate
14 Levels of Organization (within an Individual) AtomSmallest particle of ordinary matter
15 Homework 1. Outline and complete: Concept check 1.2 2. Kingdom Exploration Pre-LabDining in the trees. Shown is a female leopard and her daughter who have just killed a duiker (a small antelope). They could eat right after killing it, but then it might get stolen. Better for the mother to haul the prey up into a tree where it can be consumed without worry that a lion or hyena will steal it.If you compare a leopard to another big cat that lives in the same area in Africa, the lion. you’ll see there are important differences. Leopards are nocturnal, whereas lions are diurnal. Leopards eat a much greater variety of prey than lions. Leopards are physically much smaller than lions only about 1/3 their size, but leopards are faster.Compared to lions, leopards are solitary animals, maintaining separate non-overlapping territories. They don’t compete with each other for prey. Sensitive whiskers on its face help the cat navigate through dense veg while hunting at night. Spots provide camouflage in dry grasses of African plains, but they are also found in deserts, hill country and jungles.
16 Concept 1.2 Biology explores life in its diverse forms
17 Objectives 1. Use the term species in discussing life’s diversity. 2. Explain the basic strategy biologists use in classifying organisms.3. Identify a characteristic that separates the domains Bacteria and Archaea from the domain Eukarya.Key Terms Species domain unicellular prokaryotic cell eukaryotic cell multicellular
18 Three Domains of Life taxonomy Domain branch of biology that names & classifies speciesDomainHighest level of taxonomic classification used by biologistsBacteriaArchaeaEukaryaprokaryotes
24 Concept 1.3 Ten themes unify the study of life Objectives Identify the 10 themes of BiologyKey Terms System Photosynthesis Producer Consumer Homeostasis Adaptation Population Natural Selection Evolution24
25 Ten themes unify the study of life Biological systemsThe cellular basis of lifeForm and FunctionReproduction and inheritanceInteraction with the environmentEnergy and lifeRegulationAdaptation and EvolutionBiology and SocietyScientific Inquiry25
31 Energy and lifeFigure 1-15 Energy enters an ecosystem as sunlight. Plants are producers that convert light energy to chemical energy stored in food. Animals and other consumers obtain their energy in chemical form by eating. Energy exits an ecosystem as heat, which all organisms generate as they perform work.31