Animal Body Structures

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Questions and Answers

What type of bones grow in the skull and cease growing when bony sutures develop between them?

  • Membrane or dermal bones (correct)
  • Vertebrate bones
  • Jointed exoskeletons
  • Cartilaginous bones

What is the primary function of the exoskeleton in crustaceans?

  • To provide attachment points for muscles
  • To house and protect the brain and nerve cord
  • To support the body
  • To serve as defensive armor (correct)

What is the common material found in the skeletons of corals, brachiopods, echinoderms, and mollusks?

  • Calcareous
  • Siliceous
  • Lime (CaCOâ‚‚) (correct)
  • Chitin

What is the main characteristic of arthropod exoskeletons?

<p>They are jointed and made of organic materials containing chitin (A)</p> Signup and view all the answers

What is the role of the skeleton in vertebrates?

<p>To support the body, provide attachment points for muscles, and house and protect the brain and nerve cord (D)</p> Signup and view all the answers

What is the fundamental pattern of the internal skeleton seen in?

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

What is the primary function of the cranium in the vertebrate skull?

<p>To house and protect the brain (C)</p> Signup and view all the answers

What are the three pairs of sense capsules in the vertebrate skull?

<p>For the organs of smell, sight, and hearing (A)</p> Signup and view all the answers

What is the visceral skeleton in the vertebrate skull?

<p>A series of paired arches providing the jaws and supporting the tongue (D)</p> Signup and view all the answers

Which part of the vertebrate skull begins in the embryo as cartilage?

<p>The skull as a whole (B)</p> Signup and view all the answers

What are the points of attachment for the true ribs in land vertebrates?

<p>The transverse processes (A)</p> Signup and view all the answers

What is the function of the transverse processes in land vertebrates?

<p>To serve as points of attachment for the true ribs (D)</p> Signup and view all the answers

What is the primary function of sweat glands in the human body?

<p>To help cool the body through evaporation of perspiration (D)</p> Signup and view all the answers

What is the characteristic of human skin that suggests humans originated in a warm environment?

<p>Its thinness and scarcity of hair (C)</p> Signup and view all the answers

What type of skeleton do vertebrates have?

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

What is the primary function of the skeleton in animals?

<p>To give physical support and protection to the body (D)</p> Signup and view all the answers

What type of skeleton do corals, mollusks, and arthropods have?

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

What is the characteristic of the skeleton in echinoderms, arthropods, and vertebrates?

<p>It is variously jointed and movable (A)</p> Signup and view all the answers

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