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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 (CaCO₂) (correct)

Chitin

What is the main characteristic of arthropod exoskeletons?

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

What is the role of the skeleton in vertebrates?

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

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

A frog (B) Signup and view all the answers

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

To house and protect the brain (C) Signup and view all the answers

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

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

What is the visceral skeleton in the vertebrate skull?

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

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

The skull as a whole (B) Signup and view all the answers

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

The transverse processes (A) Signup and view all the answers

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

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

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

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

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

Its thinness and scarcity of hair (C) Signup and view all the answers

What type of skeleton do vertebrates have?

Endoskeleton (C) Signup and view all the answers

What is the primary function of the skeleton in animals?

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

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

Exoskeleton (D) Signup and view all the answers

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

It is variously jointed and movable (A) Signup and view all the answers