CH 8: Environment
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Questions and Answers

What are organisms that cannot synthesize their own food and must consume other organisms called?

  • Consumers (correct)
  • Decomposers
  • Producers
  • Autotrophs

Which type of consumer feeds solely on plants?

  • Secondary Consumer
  • Tertiary Consumer
  • Omnivore
  • Primary Consumer (correct)

Which type of consumer is at the top of the food chain and has no natural predators?

  • Quaternary Consumer
  • Secondary Consumer
  • Primary Consumer
  • Tertiary Consumer (correct)

Which type of organism breaks down dead organic matter and returns nutrients to the soil?

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

Which type of consumer feeds on both plant and animal material?

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

Which organism actively hunts and kills its prey?

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

Which organism consumes leftover carcasses?

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

Which abiotic factor significantly affects the types of vegetation in an area?

<p>Soil pH and texture (B)</p> Signup and view all the answers

Which type of plants are adapted to arid environments?

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

Which atmospheric gas plays a crucial role in supporting life through the carbon cycle?

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

Which process describes how energy moves through different trophic levels in an ecosystem?

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

Which essential nutrient cycle recycles elements through the ecosystem to support life processes?

<p>Carbon and oxygen cycles (C)</p> Signup and view all the answers

Which broader term includes both biotic and abiotic components of our surroundings?

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

Which animal adaptation helps regulate body temperature in extreme environments?

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

Which atmospheric factor affects precipitation patterns and seed dispersion?

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

What type of organisms are crucial in nutrient cycling and energy flow in ecosystems?

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

Which of the following animals is categorized as a secondary consumer?

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

Which organisms consume both plant and animal material in an ecosystem?

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

What are creatures like hyenas that consume leftover carcasses called?

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

Which organisms actively hunt and kill their prey?

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

What is the term for organisms that cannot synthesize their own food and must consume other organisms?

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

Which type of consumer feeds on secondary consumers in the ecosystem?

<p>Tertiary Consumers (A)</p> Signup and view all the answers

How do physiographic factors influence the environment?

<p>They determine the types of vegetation that can thrive in an area. (B)</p> Signup and view all the answers

Which factor related to soil influences plant growth by affecting soil fertility?

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

What is the main role of atmospheric gases in ecosystems?

<p>To support life through various biogeochemical cycles (C)</p> Signup and view all the answers

Which type of plants are adapted to arid environments?

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

What is the primary function of wind in ecosystems?

<p>To affect precipitation and seed dispersion (B)</p> Signup and view all the answers

How does energy flow through ecosystems?

<p>From producers to consumers (D)</p> Signup and view all the answers

What is the purpose of food chains and webs in ecosystems?

<p>To show energy transfer among trophic levels (A)</p> Signup and view all the answers

Which abiotic factor directly affects plant distribution by influencing survival and growth?

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

What is the main role of decomposers in an ecosystem?

<p>To break down dead organic matter and return nutrients to the soil (A)</p> Signup and view all the answers

Which category of organisms must consume other organisms for food?

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

What distinguishes scavengers from predators in an ecosystem?

<p>Scavengers consume leftover carcasses. (D)</p> Signup and view all the answers

Why are decomposers essential in an ecosystem?

<p>To recycle nutrients by breaking down dead organic matter (B)</p> Signup and view all the answers

What is the primary characteristic of primary consumers in an ecosystem?

<p>They synthesize their own food. (B)</p> Signup and view all the answers

Which organisms play a crucial role in recycling nutrients and energy flow within ecosystems?

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

What is the primary function of omnivores in an ecosystem?

<p>To consume both plant and animal material (A)</p> Signup and view all the answers

Which abiotic factor is not directly mentioned as influencing the survival and distribution of organisms?

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

Which type of organism is not explicitly mentioned as having a role in nutrient cycling and energy flow in ecosystems?

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

Which of these is not a physiographic factor?

<p>Edaphic factors (C)</p> Signup and view all the answers

Which of these is not a common animal adaptation mentioned in the text?

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

Which nutrient cycle is not explicitly mentioned in the text?

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

Which of these is not a common feature of xerophytes?

<p>Water-repellent surfaces (C)</p> Signup and view all the answers

Which of these is not a role of atmospheric gases mentioned in the text?

<p>Regulating temperature (C)</p> Signup and view all the answers

Which of these is not a common feature of hydrophytes?

<p>Extensive root systems (C)</p> Signup and view all the answers

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