Skeletons (Grade 10 NSC Matric Life Sciences): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What three main functions does a skeleton provide to an organism?
What three main functions does a skeleton provide to an organism?
Structure, protection, and movement
What is the fluid-filled cavity in a hydrostatic skeleton called?
What is the fluid-filled cavity in a hydrostatic skeleton called?
Coelom
Which animals have hydrostatic skeletons?
Which animals have hydrostatic skeletons?
Earthworms, jellyfish, and octopuses
What is an advantage of hydrostatic skeletons for healing?
What is an advantage of hydrostatic skeletons for healing?
Repairs faster than hard skeletons
Why must animals with hydrostatic skeletons stay in moist environments?
Why must animals with hydrostatic skeletons stay in moist environments?
To prevent drying out (desiccation)
What material is an exoskeleton primarily made from?
What material is an exoskeleton primarily made from?
Chitin
Which group of animals has exoskeletons?
Which group of animals has exoskeletons?
Arthropods
Why are animals with exoskeletons vulnerable during moulting?
Why are animals with exoskeletons vulnerable during moulting?
Old skeleton shed before new one hardens
What materials can endoskeletons be made from?
What materials can endoskeletons be made from?
Cartilage or bone
What force helped early aquatic organisms support their bodies without complex skeletons?
What force helped early aquatic organisms support their bodies without complex skeletons?
Buoyancy