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Introduction to Biology and Populations Ecology JEOPARDY!! Characterstics of LifeLab Skills Ecology OverviewPopulation Structure and Dynamics Population Growth 10 20 30 40 50
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10 Characteristics of Life When it’s hot outside, you sweat.
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10 Living things need to maintain homeostasis. Characteristics of Life
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20 Characteristics of Life If you cut yourself, a scab will form.
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20 Characteristics of Life Living things must grow and develop.
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30 Characteristics of Life Change that occurs in a species overtime in response to the continuously changing environment
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30 Characteristics of Life Living things evolve.
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30 Characteristics of Life
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40 Characteristics of Life A plant moves towards the sun.
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40 Characteristics of Life Living things must be able to respond to stimuli
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50 Characteristics of Life All living organisms share similar instructions to run cell processes and pass on hereditary information.
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50 Living things must have Deoxyribose Nucleic Acid (DNA) Characteristics of Life
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10 What is an independent variable? Lab Skills
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What the experimenter is testing, should only be 1! 10 Lab Skills
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20 What is a dependent variable? Lab Skills
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The biological response or what the experimenter measures 20 Lab Skills
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30 Why do we need controlled variables? Lab Skills
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To ensure we are testing only one independent variable 30 Lab Skills
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40 What should you do with your hypothesis after your experiment? Lab Skills
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*Accept- data collected in the experiment supports it. *Reject- data collected does not support it. 40 Lab Skills
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50 What do we call the “placebo” group in an experiment, and why is it essential? Lab Skills
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50 The Control Group- to use as a standard for comparison. Lab Skills
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10 Ecology Overview List the ecological levels of organization from least inclusive (specific) to most inclusive (broadest)
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Organism, Popululation, Community, Ecosystem, Biosphere 10 Ecology Overview
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20 Define Ecology. Ecology Overview
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The study of how organisms interact with their environment and each other. 20 Ecology Overview
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30 A group of pigeons. Ecology Overview
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30 Population
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40 In addition to populations, ecosystems include… Ecology Overview
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40 Abiotic Factors
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50 The sum of all of the planet’s ecosystems… Ecology Overview
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50 Biosphere
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10 Population Structure Define Population Density.
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10 Population Structure The number of individuals of a species per unit area or volume
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20 Population Structure How do scientists determine population density and why?
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20 Population Structure *Counting or *Sampling Techniques- it’s often impossible and impractical to count all organism in an area.
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30 Population Structure Why would an organisms in a population take on clumped dispersion?
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30 Population Structure *Herding patterns *social behavior *uneven distribution of resources *mating
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40 Population Structure What are survivorship curves?
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40 Population Structure *Graphs (curves) generated from life tables. *Looks at average life span of organisms to make determinations about population growth.
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50 Population Structure What kind of distribution would a Cresotebush in the desert take and why?
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50 Population Structure Uniform- competition for water
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10 My name is Bond, Ionic Bond; Taken, not shared! Cells
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10 Population Growth From: Mariano Cecowski Q: if both a bear in Yosemite and one in Alaska fall into the water which one disolves faster? A: The one in Alaska because it is HIJKLMNO
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10 Population Growth Alimentary: What Sherlock Holmes said to Dr. Watson. Urinate: What a nurse would say if a patient asked her what room he's in. Urine - The opposite of "You're out!" Benign: What we want when we are eight. Intestine - Currently taking an exam CARDIOLOGY: advanced study of poker playing TERMINAL ILLNESS: getting sick at the airport
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10 Population Growth What are the factors that limit population growth?
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10 Population Growth Density-dependent (competition, health, predation, physiological factors) Density-independent (acidity, salinity, fires, catastrophes, weather conditions) Boom and Bust cycles (pred/prey relationships, food supply)
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10 Population Growth
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20 What kind of growth model is represented below, and how is it possible?
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Exponential Growth Model- conditions are ideal, birth rates exceed death rates 20 Population Growth
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30 What are the characteristcs of the logistic growth model?
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30 Population Growth Idealized population growth slowed by limiting factors.
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30 Population Growth
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40 What is this? Analyze the data!
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40 Population Growth Age Structure Diagram- *Decline in Population Growth *Not enough children being born to replace those who die
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50 Population Growth What kind of growth do humans exhibit? Why is this a concern?
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50 Population Growth Exponential Growth. *It’s ideal—and nothing’s perfect! *resources will run out *disease will spread …?
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