Ecosystems and Communities Quiz
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Questions and Answers

Which of the following is considered a biotic resource?

  • Water
  • Pollinators (correct)
  • Solar radiation
  • Soil nutrients
  • What type of environmental factor includes temperature and humidity?

  • Abiotic factors (correct)
  • Biotic factors
  • Nutritional factors
  • Disturbances
  • Which of the following is an example of a biotic disturbance?

  • Falling meteorites
  • Hurricanes
  • Floods
  • Caterpillar outbreaks (correct)
  • What is interspecific competition?

    <p>Competition between different species</p> Signup and view all the answers

    What best describes the outcome of predation in an ecosystem?

    <p>Predator benefits and prey is harmed</p> Signup and view all the answers

    Which is an effect of an abiotic disturbance?

    <p>Opening spaces for colonization</p> Signup and view all the answers

    Which of the following conditions represents a physical environmental factor?

    <p>Soil acidity</p> Signup and view all the answers

    What role do seed dispersers play in an ecosystem?

    <p>Facilitating plant reproduction</p> Signup and view all the answers

    What is gene flow in a population?

    <p>The transfer of genetic material between individuals</p> Signup and view all the answers

    Which of the following describes intraspecific competition?

    <p>Competition among individuals of the same species</p> Signup and view all the answers

    What measurement describes the population density?

    <p>The number of individuals per unit area or volume</p> Signup and view all the answers

    What is abundance in the context of populations?

    <p>The total number of individuals in a population</p> Signup and view all the answers

    What are emerging properties in populations?

    <p>Characteristics that arise when individuals are studied as a group</p> Signup and view all the answers

    How is population density calculated?

    <p>Population size divided by a unit area</p> Signup and view all the answers

    What role does intraspecific competition play in a population?

    <p>It can reduce the overall population size</p> Signup and view all the answers

    What does the term 'population size' refer to?

    <p>The number of individuals in a given population</p> Signup and view all the answers

    What unit measures relative humidity?

    <p>Percentage</p> Signup and view all the answers

    How does altitude affect air temperature?

    <p>Temperature decreases as altitude increases</p> Signup and view all the answers

    Which of the following statements about latitude is accurate?

    <p>Higher latitudes receive less direct sunlight.</p> Signup and view all the answers

    What is the typical percentage range of relative humidity in Ciudad Victoria during September?

    <p>50% to 74%</p> Signup and view all the answers

    What factor directly affects the amount of solar radiation received by a region?

    <p>Latitude</p> Signup and view all the answers

    In Monterrey, which month experiences the highest average rainfall?

    <p>September</p> Signup and view all the answers

    What happens to the atmospheric pressure as altitude increases?

    <p>Atmospheric pressure decreases</p> Signup and view all the answers

    What measurement is typically used to analyze cloud cover?

    <p>Fraction of sky covered by clouds</p> Signup and view all the answers

    What is expected from students in terms of knowledge application related to ecosystems?

    <p>Apply knowledge to illustrate processes related to human impact and propose conservation actions.</p> Signup and view all the answers

    Which of the following correctly describes abiotic factors within an ecosystem?

    <p>Temperature and humidity that affect climate characteristics.</p> Signup and view all the answers

    What is the primary focus of the learning objectives regarding human activities?

    <p>Examining the effects of human activities on regional ecosystems.</p> Signup and view all the answers

    How do students demonstrate their understanding of biotic factors in ecosystems?

    <p>By representing and explaining the interaction and characteristics of plants and animals.</p> Signup and view all the answers

    What characterizes the primary learning evidence related to ecosystems?

    <p>Understanding food chains and their role in ecosystems.</p> Signup and view all the answers

    Which of the following best represents a human activity that could impact ecosystems?

    <p>Overfishing in marine habitats.</p> Signup and view all the answers

    What process is involved in recycling nutrients in the biosphere?

    <p>Decomposition and nutrient cycling.</p> Signup and view all the answers

    What does GPP stand for in the context of ecosystem energy flow?

    <p>Gross Primary Production</p> Signup and view all the answers

    Which term describes the energy stored in the tissue of an organism?

    <p>Biomass energy</p> Signup and view all the answers

    Net Primary Production (NPP) can be defined as:

    <p>Gross Primary Production minus autotrophic respiration</p> Signup and view all the answers

    What is the main role of autotrophs in an ecosystem?

    <p>To fix energy through photosynthesis and chemosynthesis</p> Signup and view all the answers

    Which process is NOT typically part of biogeochemical cycles?

    <p>Solar radiation absorption</p> Signup and view all the answers

    How does nitrogen typically cycle through an ecosystem?

    <p>By producing ammonia and nitrates</p> Signup and view all the answers

    The term 'biogeochemical cycles' mainly refers to:

    <p>The cycling of elements between living organisms and the environment</p> Signup and view all the answers

    What is autotrophic respiration primarily responsible for?

    <p>Utilizing energy for metabolism and maintenance of bodily functions</p> Signup and view all the answers

    Study Notes

    Ecosystems and Communities

    • Ecosystems are made up of interactions between living organisms and their environment.
    • Abiotic factors include temperature, humidity, pressure, and soil type.
    • Biotic factors include plants, animals, and microorganisms.
    • The text focuses on understanding ecosystems and communities through their components and interactions.

    Populations

    • A population consists of individuals of the same species living in a specific place.
    • Factors that affect population size include gene flow, intraspecific competition, density, and abundance.

    Environmental Factors

    • Conditions: Physical and chemical factors can affect populations. Examples include temperature, humidity, soil acidity, and toxic substances.
    • Disturbances: Sudden or chronic events impact populations. Examples include fire, floods, landslides, hurricanes, parasites, and invasive species.

    Resources

    • A resource is anything an organism needs to survive.
    • Resources can be biotic (pollinators, prey) or abiotic (water, solar energy).
    • Interspecific competition occurs when individuals of different species compete for the same resources.

    Predation

    • Predation is a relationship where one organism (predator) eats another organism (prey).
    • It has a positive impact on the predator's survival and reproduction.

    Energy Flow

    • Energy is the ability to do work.
    • In ecosystems, light energy is transformed into chemical energy through photosynthesis.
    • Chemical energy is stored in the bonds of molecules in plants and animals.
    • Biomass energy is the energy stored in living organisms.
    • Respiration releases energy from organic matter.

    Primary Production

    • Gross Primary Production (GPP) is the total amount of energy fixed by autotrophs through photosynthesis.
    • Net Primary Production (NPP) is the energy available to other organisms after respiration.
    • NPP represents the amount of energy and food biomass available to higher trophic levels.

    Climate Factors

    • Latitude: Influences solar radiation. Equator receives most direct sunlight. Tropical regions are warm, poles are cold.
    • Altitude: Height above sea level. Lower atmospheric pressure and temperature at higher altitudes.
    • Relative Humidity: Percentage of water vapor in the air. Affected by temperature. Measured with a hygrometer.
    • Cloudiness: Percentage of sky covered by clouds. Affects weather and solar radiation.

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    Description

    Test your knowledge on ecosystems and communities by exploring the interactions between living organisms and their biotic and abiotic environments. Understand population dynamics and the environmental factors that influence them. This quiz covers essential concepts needed to grasp the complexity of ecosystems.

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