Adaptations in Different Ecosystems — Flashcards
Telangana Board · Class 9 · Biology
20 flashcards for Adaptations in Different Ecosystems (Telangana Board Class 9 Biology) to test yourself on key terms and facts.
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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,…
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…
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…
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 …
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 …
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 …
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…
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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