Skeletal System: Skull Anatomy and Functions

Play an AI-generated podcast conversation about this lesson

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?

7 (B) Signup and view all the answers

What is the function of ribs described in the text?

Surrounding the lungs and heart (A) Signup and view all the answers

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

26 (B) Signup and view all the answers

What is the purpose of cartilage at the joints?

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

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

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

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

To support the hindlimbs (D) Signup and view all the answers

How do the ribs of vertebrate animals contribute to protection?

By providing support for the body (B) Signup and view all the answers

What is the characteristic feature of the backbone in vertebrates?

It protects the spinal cord (B) Signup and view all the answers

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

By providing flexibility and support (B) Signup and view all the answers

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

To maximize sunlight exposure for photosynthesis (D) Signup and view all the answers

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

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

Why do Rooibos plants have thin and small leaves?

To reduce water loss through transpiration (B) Signup and view all the answers

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

To swim efficiently in water (D) Signup and view all the answers

Why do zebras have white stripes on their bodies?

To temporarily blind predators when escaping (B) Signup and view all the answers

What is the primary function of fins in fish?

To regulate buoyancy in water (D) Signup and view all the answers

What is the main purpose of a habitat?

Supplying food, water, air, and shelter (D) Signup and view all the answers

What is the significance of interdependence in habitats?

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

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

Host (B) Signup and view all the answers

How do orchids in humid areas obtain moisture?

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

Why do some plants have seeds with hooks?

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

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

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

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

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

What distinguishes vertebrates from invertebrates in terms of body structure?

Having bones inside the body (D) Signup and view all the answers

What is the primary purpose of an endoskeleton?

Supporting larger body sizes and weight (B) Signup and view all the answers

Which animals group does not have an exoskeleton?

Fish (C) Signup and view all the answers

Give the definition of a habitat.

Habitat is the home of plants and animals. Signup and view all the answers

What is biodiversity?

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. Signup and view all the answers

What is an organism?

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

What are the five classes of animals with vertebrates?

Amphibians, mammals, birds, fish, reptiles. Signup and view all the answers

What do bones contain?

Calcium Signup and view all the answers

What is the soft stuff between bones called?

Cartilage Signup and view all the answers