Skeletal System: Skull Anatomy and Functions

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Questions and Answers

What is the main function of the skull according to the text?

  • Facilitating breathing
  • Forming the limbs
  • Protecting the brain (correct)
  • Supporting the spinal cord

How many individual bones make up the adult skull?

  • 30
  • 12
  • 7
  • 22 (correct)

What is the primary function of the spine mentioned in the text?

  • Supporting the brain
  • Transporting oxygen
  • Protecting the lungs
  • Protecting the spinal cord (correct)

How many vertebrae are found in the necks of humans and giraffes according to the text?

<p>7 (B)</p> Signup and view all the answers

What is the function of ribs described in the text?

<p>Surrounding the lungs and heart (A)</p> Signup and view all the answers

How many vertebrae are typically found in the backbone/spine?

<p>26 (B)</p> Signup and view all the answers

What is the purpose of cartilage at the joints?

<p>To allow bones to rub together smoothly (C)</p> Signup and view all the answers

How does the vertebrate skeleton protect internal organs like the heart and lungs?

<p>By providing a frame structure around them (D)</p> Signup and view all the answers

What is the main responsibility of the hip girdle in vertebrates?

<p>To support the hindlimbs (D)</p> Signup and view all the answers

How do the ribs of vertebrate animals contribute to protection?

<p>By providing support for the body (B)</p> Signup and view all the answers

What is the characteristic feature of the backbone in vertebrates?

<p>It protects the spinal cord (B)</p> Signup and view all the answers

In what way do joints and girdles help vertebrate animals during movement?

<p>By providing flexibility and support (B)</p> Signup and view all the answers

Why do water lilies have leaves that float on the water?

<p>To maximize sunlight exposure for photosynthesis (D)</p> Signup and view all the answers

What is the main purpose of the thick and fleshy leaves of aloe plants?

<p>To store water for times of drought (C)</p> Signup and view all the answers

Why do Rooibos plants have thin and small leaves?

<p>To reduce water loss through transpiration (B)</p> Signup and view all the answers

How do the webbed fingers and toes of frogs help them survive in their habitat?

<p>To swim efficiently in water (D)</p> Signup and view all the answers

Why do zebras have white stripes on their bodies?

<p>To temporarily blind predators when escaping (B)</p> Signup and view all the answers

What is the primary function of fins in fish?

<p>To regulate buoyancy in water (D)</p> Signup and view all the answers

What is the main purpose of a habitat?

<p>Supplying food, water, air, and shelter (D)</p> Signup and view all the answers

What is the significance of interdependence in habitats?

<p>It allows plants and animals to rely on each other for survival. (A)</p> Signup and view all the answers

Which term describes a plant that provides food, water, and shelter for another plant?

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

How do orchids in humid areas obtain moisture?

<p>By absorbing moisture from the air with aerial roots (C)</p> Signup and view all the answers

Why do some plants have seeds with hooks?

<p>To help disperse the seeds through animal fur (A)</p> Signup and view all the answers

What role do tick birds play in the ecosystem described in the text?

<p>They help animals by cleaning their shells. (A)</p> Signup and view all the answers

How do animals with exoskeletons overcome the limitation of their shell not growing?

<p>They shed their exoskeleton and grow a new one. (B)</p> Signup and view all the answers

What distinguishes vertebrates from invertebrates in terms of body structure?

<p>Having bones inside the body (D)</p> Signup and view all the answers

What is the primary purpose of an endoskeleton?

<p>Supporting larger body sizes and weight (B)</p> Signup and view all the answers

Which animals group does not have an exoskeleton?

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

Give the definition of a habitat.

<p>Habitat is the home of plants and animals.</p> Signup and view all the answers

What is biodiversity?

<p>Biodiversity is all the different kinds of life you'll find. The number of different types of animals, plants, fungi, and even microorganisms like bacteria that make up our natural world.</p> Signup and view all the answers

What is an organism?

<p>Any living creatures such as a plant, animal, fungi or bacteria</p> Signup and view all the answers

What are the five classes of animals with vertebrates?

<p>Amphibians, mammals, birds, fish, reptiles.</p> Signup and view all the answers

What do bones contain?

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

What is the soft stuff between bones called?

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

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