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Questions and Answers
What type of skeleton is a rigid outer shell that holds up an organism's shape?
What type of skeleton is a rigid outer shell that holds up an organism's shape?
Which animals have skeletons typically composed of bones and cartilages?
Which animals have skeletons typically composed of bones and cartilages?
What is the term for the rigid connective tissue found in the skeletal systems of vertebrates and invertebrates?
What is the term for the rigid connective tissue found in the skeletal systems of vertebrates and invertebrates?
What is the etymological origin of the term 'skeleton'?
What is the etymological origin of the term 'skeleton'?
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What are skeletons with hard-shelled exteriors found in arthropods and most molluscs called?
What are skeletons with hard-shelled exteriors found in arthropods and most molluscs called?
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Study Notes
Skeleton Types
- A rigid outer shell that provides structural support and defines an organism's shape is known as an exoskeleton.
Skeleton Composition
- Animals with skeletons typically composed of bones and cartilages include vertebrates, such as mammals, birds, reptiles, amphibians, and most fish.
Rigid Connective Tissue
- The term for the rigid connective tissue present in the skeletal systems of both vertebrates and invertebrates is bone.
Etymology of 'Skeleton'
- The word 'skeleton' originates from the Greek term 'skeletos', meaning "dried up" or "to be made into a skeleton," reflecting the concept of a skeletal framework.
Hard-Shelled Exteriors
- Skeletons with hard-shelled exteriors found in organisms such as arthropods (e.g., insects, crustaceans) and most molluscs (e.g., snails, clams) are referred to as exoskeletons.
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Description
Learn about the different types of animal skeletons and their functions, including exoskeletons, endoskeletons, and hydroskeletons. Understand how vertebrates have an endoskeleton centered around an axial vertebral column.
