G5-6 MULT CHOICE

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Questions and Answers

Which factor significantly affects how the population dynamics of an ecosystem are interpreted?

  • Interactions and relationships between species
  • Density-dependent factors
  • Population size and growth (correct)
  • Density-independent factors

What brings a much stronger impact on population dynamics compared to its counterpart?

  • Population size and growth
  • Density-independent factors
  • Interactions and relationships between species
  • Density-dependent factors (correct)

What is the process by which the variety of species and environment in a region changes over time?

  • Interactions and relationships between species
  • Population size and growth
  • Ecological succession (correct)
  • Density-dependent factors

What are ecosystems composed of?

<p>Intricate and complex relationships between species (C)</p> Signup and view all the answers

What do conservation efforts aim to do?

<p>Restore and protect population (A)</p> Signup and view all the answers

Why are balanced population dynamics vital for biodiversity and ecosystem health?

<p>Interactions and relationships between species (B)</p> Signup and view all the answers

Which of the following is a fundamental ecological concept that describes how energy is transferred and transformed within an ecosystem?

<p>Food chains (C)</p> Signup and view all the answers

Which of the following best describes the Law of Thermodynamics in relation to energy flow?

<p>Energy can only be transformed from one form to another (C)</p> Signup and view all the answers

Which biogeochemical cycle involves the continuous movement of carbon atoms between the atmosphere and the Earth?

<p>Carbon cycle (D)</p> Signup and view all the answers

What factors can influence population dynamics?

<p>All of the above (D)</p> Signup and view all the answers

Which of the following can impact ecological balance and population dynamics on an island?

<p>Both predators and competition among species (C)</p> Signup and view all the answers

What is the significance of trophic systems in facilitating energy flow?

<p>They facilitate the flow of energy through different trophic levels (B)</p> Signup and view all the answers

Which of the following best describes a food web?

<p>A network of trophic interactions between species (A)</p> Signup and view all the answers

What is the significance of a food web compared to a simple food chain?

<p>It provides alternate sources of food (A)</p> Signup and view all the answers

Which factor is NOT important in determining which species can survive in an ecosystem?

<p>Amount of sunlight (B)</p> Signup and view all the answers

What is the role of autotrophs in an ecosystem?

<p>They produce their own food using energy from the sun (A)</p> Signup and view all the answers

Which statement about natural ecosystems is correct?

<p>They include forest and marine ecosystems (C)</p> Signup and view all the answers

What is the role of heterotrophs in an ecosystem?

<p>They obtain energy by consuming other organisms (C)</p> Signup and view all the answers

Which type of ecosystem is formed by human interference and for a specific purpose?

<p>Artificial ecosystem (B)</p> Signup and view all the answers

What are the components of a trophic system?

<p>Producers and consumers (D)</p> Signup and view all the answers

What is the primary source of energy in a grazing food chain?

<p>Plants (B)</p> Signup and view all the answers

What is an example of a symbiotic trophic interaction?

<p>Mutualism (D)</p> Signup and view all the answers

Which ecological principle states that energy flows one way, from the sun to producers, then to consumers in a food chain?

<p>Food chains (D)</p> Signup and view all the answers

Which population has the smallest size in a food chain?

<p>Quaternary consumers (B)</p> Signup and view all the answers

Which of the following best describes an aquatic ecosystem?

<p>An ecosystem that exists only in and around a body of water (C)</p> Signup and view all the answers

What are the two separate components that make up an ecosystem?

<p>Biotope and biocenosis (B)</p> Signup and view all the answers

Which type of ecosystem is necessary for the supply of services and ecological processes for all life on Earth?

<p>Terrestrial ecosystem (A)</p> Signup and view all the answers

What is the role of human-ecosystem interaction?

<p>To impact natural ecosystems (C)</p> Signup and view all the answers

Which of the following is NOT an importance of ecosystems?

<p>Economic value (D)</p> Signup and view all the answers

What is an artificial ecosystem?

<p>An ecosystem that is built and managed by humans (C)</p> Signup and view all the answers

Which type of growth model explains population trends in a balanced ecosystem?

<p>Logistic growth model (D)</p> Signup and view all the answers

What is the main factor that significantly affects the interpretation of population dynamics in an ecosystem?

<p>Population size (B)</p> Signup and view all the answers

Which factors have a stronger impact on population dynamics in an ecosystem?

<p>Density-dependent factors (A)</p> Signup and view all the answers

What is the process by which the variety of species and environment in a region changes over time?

<p>Ecological succession (B)</p> Signup and view all the answers

What are ecosystems primarily composed of?

<p>Biotic factors (B)</p> Signup and view all the answers

Which type of factors bring a stronger impact on population dynamics in an ecosystem?

<p>Density-dependent factors (A)</p> Signup and view all the answers

What is the main goal of conservation efforts in relation to populations?

<p>To restore and protect population (C)</p> Signup and view all the answers

What are the key aspects of population dynamics in an ecosystem?

<p>Interactions and relationships between species (B)</p> Signup and view all the answers

What is the significance of understanding population dynamics in an ecosystem?

<p>To achieve sustainable coexistence of species (B)</p> Signup and view all the answers

What is the term for the final stage of ecological succession where an established forest is attained?

<p>Climax community (D)</p> Signup and view all the answers

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