Organisms Structures and Survival in Habitats

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Questions and Answers

What is an example of a special structure that helps organisms survive in their habitats?

  • Eyes
  • Tail
  • Horns
  • Fur (correct)

Why do many organisms living in the ocean have fins?

  • To protect themselves from predators
  • To walk on land
  • To help them move easily through the water (correct)
  • To fly in the sky

What happens when two or more living things need the same resources to survive?

  • They merge into one organism
  • They experience competition (correct)
  • They form a symbiotic relationship
  • They engage in photosynthesis

What was the initial perception about Kudzu in the environment?

<p>It was a beautiful plant used for erosion control (B)</p> Signup and view all the answers

How do beavers alter their environment to improve their habitat?

<p>By building dams across streams (D)</p> Signup and view all the answers

Why do some trees shade nearby plants as they grow?

<p>To compete for sunlight (C)</p> Signup and view all the answers

Why do some plants and animals benefit from the change caused by the blocked water forming a pond behind the dam?

<p>They thrive in direct sunlight. (B)</p> Signup and view all the answers

How do plants and animals whose homes are flooded by the pond behind the dam get affected?

<p>Their homes are taken away, leading to displacement. (D)</p> Signup and view all the answers

What is a consequence of people building a new group of homes by cutting down forests rapidly?

<p>Quick decrease in bird population due to loss of habitat. (A)</p> Signup and view all the answers

Why might some birds and other animals move away or die when people use chemicals to kill crops-eating insects?

<p>Their food source decreases as insects reduce in number. (D)</p> Signup and view all the answers

How do the changes made by people building bird houses impact certain kinds of birds in the area?

<p>They provide shelter and food for certain kinds of birds. (A)</p> Signup and view all the answers

Why do most birds and other animals have to move away when people make sudden changes to their environment?

<p>Because their habitats are no longer suitable or available. (A)</p> Signup and view all the answers

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