Plants and Animals

Overview

Plants and Animals forms a core component of Environmental Studies (EVS) for WB TET Paper I. This topic tests your understanding of basic biological concepts that primary school teachers must convey to young learners. Questions typically focus on plant parts and their functions, basic life processes common to living organisms, and simple classification of animals based on observable characteristics.

For WB TET, expect 3–5 questions from this area, often presented through child-friendly scenarios or classroom situations. The pedagogy angle is equally important—you should know how to teach these concepts using local examples, real specimens, and activity-based methods rather than rote memorisation. Mastery here also supports questions in the Science section of Paper II.

The emphasis is on factual accuracy combined with age-appropriate teaching strategies. Focus on visual identification of plant parts, understanding why animals are grouped certain ways, and connecting textbook knowledge to the child's immediate environment.

Key Concepts

• **Living vs Non-living**: Living things show movement, growth, respiration, reproduction, response to stimuli, excretion, and nutrition—the seven life processes (often remembered as MRS GREN or similar mnemonics).

• **Plant Parts and Functions**: Root (absorption, anchorage), Stem (transport, support), Leaf (photosynthesis, transpiration), Flower (reproduction), Fruit (seed protection and dispersal), Seed (new plant formation).

• **Photosynthesis Simplified**: Green plants prepare food using sunlight, water, and carbon dioxide; oxygen is released. Chlorophyll in leaves captures sunlight.

• **Respiration in Plants**: Plants also respire—they take in oxygen and release carbon dioxide, but overall during daytime, oxygen release exceeds carbon dioxide release due to photosynthesis.

• **Animal Classification by Habitat**: Terrestrial (land), Aquatic (water), Amphibians (both), Aerial (air-dwelling or flying animals).

• **Animal Classification by Body Covering**: Fur/hair (mammals), Feathers (birds), Scales (fish, reptiles), Moist skin (amphibians), Exoskeleton (insects).

• **Animal Classification by Food Habits**: Herbivores (plant-eaters), Carnivores (meat-eaters), Omnivores (both).

• **Vertebrates vs Invertebrates**: Vertebrates have a backbone (fish, amphibians, reptiles, birds, mammals); Invertebrates lack a backbone (insects, worms, snails, spiders).

Key Facts

| Category | Examples / Details | |----------|-------------------| | Root types | Tap root (mango, neem), Fibrous root (grass, wheat, rice) | | Stem modifications | Potato (underground stem), Ginger (rhizome), Onion (bulb) | | Leaf functions | Photosynthesis, transpiration, gaseous exchange through stomata | | Insect body parts | Head, thorax, abdomen; 6 legs; 2 antennae | | Mammals' key feature | Give birth to young ones (most), nurse with milk, warm-blooded | | Birds' key feature | Feathers, beaks, lay hard-shelled eggs, warm-blooded | | Fish characteristics | Gills for breathing, fins for swimming, scales, cold-blooded | | Amphibian examples | Frog, toad, salamander—moist skin, live in water and on land |