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Chapter 9 of 11
Flashcards

Adaptations in Different Ecosystems

Kerala Board · Class 9 · Biology

Flashcards for Adaptations in Different Ecosystems — Kerala Board Class 9 Biology. Quick Q&A cards covering key concepts, definitions, and formulas.

45 questions20 flashcards5 concepts
20 Flashcards
Card 1Basic Concepts

What is adaptation and why is it important for organisms?

Answer

Adaptation is a feature or characteristic that organisms develop over time to survive better in their environment. It helps organisms adjust to diverse conditions like water availability, temperature,

Card 2Plant Adaptations

Pneumatophores

Answer

Aerial roots found in mangrove plants like Avicennia that project 12 inches above soil/sediment. They help plants breathe in waterlogged, salty environments by maintaining adequate root respiration. T

Card 3Plant Adaptations

How do xerophytic plants conserve water? Give three specific adaptations.

Answer

1. Reduced leaves to spines (like in Opuntia) to minimize transpiration 2. Succulent stems that store water (like in cacti and Aloe vera) 3. Thick waxy cuticle on surfaces to reduce water loss 4. Some

Card 4Animal Adaptations

List four adaptations of camels for desert survival and explain how each helps.

Answer

1. Hump - stores fat for energy during food scarcity 2. Long eyelashes - protect eyes from blowing sand 3. Closeable nostrils - prevent sand entry during sandstorms 4. Long legs - keep body away from

Card 5Animal Adaptations

What are nocturnal animals and why do some desert animals become nocturnal?

Answer

Nocturnal animals are active during night and sleep during day. They have highly developed hearing, smell, and special eyesight for darkness. Desert animals become nocturnal to escape extreme daytime

Card 6Aquatic Ecosystems

Compare freshwater and marine ecosystems in terms of their main types and examples.

Answer

Freshwater ecosystems: Lentic (stagnant water like ponds, lakes) and Lotic (running water like rivers, streams). Examples: Osman Sagar, Durgam Cheruvu in Telangana. Marine ecosystems: Seas and oceans

Card 7Marine Ecosystem Zones

Euphotic Zone

Answer

The sunlight zone in marine ecosystems (0-200m depth) with bright light and temperatures up to 30°C. Contains 80% of marine life including planktons, dolphins, flying fish, green turtles, coral coloni

Card 8Marine Ecosystem Zones

What adaptations do organisms show in the Abyssal zone (dark zone) of oceans?

Answer

1. Bioluminescence - produce their own light 2. Large mouths and curved teeth for catching prey 3. Absence of skeleton, flattened bodies 4. Non-functional or absent eyes (some are blind) 5. Mostly pre

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Frequently Asked Questions

What are the important topics in Adaptations in Different Ecosystems for Kerala Board Class 9 Biology?

Adaptations in Different Ecosystems covers several key topics that are frequently asked in Kerala Board Class 9 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.

Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision before the exam.

There are 20 flashcards for Adaptations in Different Ecosystems covering key definitions, formulas, and concepts. Use them daily for 10–15 minutes for best results.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.