Summary
Adaptations are special characteristics that organisms have to survive in different environments.
- Structural Adaptation — physical characteristics that help an organism survive. Example: Cacti have thick stems to store water in deserts.
- Behavioural Adaptation — the ways organisms behave to survive. Example: Animals like squirrels hibernate to conserve energy in cold environments.
- Extreme Temperature Adaptation — adaptations to survive in very hot or cold environments. Example: Polar bears have thick fur and fat to stay warm in cold climates.
- Breathing Underwater — adaptations for obtaining oxygen underwater. Example: Fish have gills to absorb dissolved oxygen.
- Moving in Water — adaptations for efficient movement in water. Example: Ducks have webbed feet to swim easily.
- Moving in Air — adaptations for flying or gliding. Example: Birds have streamlined bodies to glide in the air.
- Dark Environment Adaptation — adaptations to survive in low-light conditions. Example: Owls have good night vision.
- Obtaining Sunlight — adaptations for photosynthesis in plants. Example: Ivy plants climb walls to reach sunlight.
- Catching Prey — adaptations for hunting. Example: Tigers have strong jaws and claws to catch prey.
- Protecting from Predators — adaptations to avoid being eaten. Example: Hedgehogs have spines for defense.
- Reproduction — adaptations to ensure species continuity. Example: Peacocks have colorful feathers to attract mates.
Exam Tips
Key Definitions to Remember
- Structural Adaptation: Physical characteristics that help an organism survive.
- Behavioural Adaptation: The ways organisms behave to survive.
Common Confusions
- Confusing structural adaptations with behavioral adaptations.
- Misunderstanding how adaptations help in specific environments.
Typical Exam Questions
- What is a structural adaptation? Physical characteristics that help an organism survive.
- How do cacti adapt to desert environments? They have thick stems to store water.
- Why do polar bears have thick fur? To stay warm in cold climates.
What Examiners Usually Test
- Understanding the difference between structural and behavioral adaptations.
- Examples of adaptations in different environments.
- How specific adaptations help organisms survive.