Plants and Animals Around Us
Overview
Plants and Animals Around Us is a foundational topic in Environmental Studies for OTET Paper I. It examines the living world that children encounter daily—from the neem tree in their schoolyard to the sparrows on their windowsill. This topic builds scientific observation skills while connecting learners to their immediate environment.
For OTET, questions typically test three areas: identification and classification of common plants and animals, understanding of basic life processes (food, shelter, reproduction), and conservation awareness. The topic integrates well with other EVS themes like food, water, and natural resources. Expect 3-5 questions directly from this area, with additional questions linking plants and animals to health, food chains, and environmental protection.
Students must master the distinction between living and non-living things, basic classification systems accessible to primary learners, plant and animal adaptations to local environments, and the role of humans in protecting biodiversity. The Odisha context—its forests, coastal ecosystems, and wildlife sanctuaries—frequently appears in questions.
Key Concepts
- **Characteristics of Living Things**: Living things grow, breathe, need food and water, respond to stimuli, reproduce, and eventually die. These characteristics distinguish plants and animals from non-living things like stones and water.
- **Parts of a Plant and Their Functions**: Roots absorb water and anchor the plant; stem transports water and nutrients; leaves prepare food through photosynthesis; flowers help in reproduction; fruits contain seeds for new plants.
- **Classification of Plants**: Plants can be grouped as herbs (soft stem, short—tulsi, mint), shrubs (woody stem, medium height—rose, hibiscus), trees (tall, thick trunk—mango, banyan), climbers (need support—money plant, grapevine), and creepers (spread on ground—pumpkin, watermelon).
- **Classification of Animals by Habitat**: Animals are grouped as terrestrial (land—cow, tiger), aquatic (water—fish, whale), amphibians (both land and water—frog, crocodile), and aerial (flying—birds, bats).
- **Classification by Food Habits**: Herbivores eat plants (cow, deer, elephant); carnivores eat other animals (lion, tiger, eagle); omnivores eat both (bear, crow, humans).
- **Adaptation**: Plants and animals develop special features to survive in their environment. Cactus has thick stem to store water; camel has hump for fat storage; fish has gills for breathing underwater.
- **Food Chain**: Energy flows from plants (producers) to herbivores (primary consumers) to carnivores (secondary consumers). Example: Grass → Deer → Tiger.