2024 NECO BIOLOGY PRACTICAL ANSWERS POSTED
FREE SESSION ENDS TODAY….. MESSAGE US ON WHATSAPP WITH 08162563540 FOR YOUR PAYMENT…… AM NO MORE DROPPING FREE ANSWERS HOPE YOU ALL KNOW *2023 NECO BIOLOGY PRACTICAL SOLUTION* ========================================= (1a) Specimen A: Land snail Specimen B: Toad Specimen C: Spider Specimen D: Crayfish (1aii) (i) Shells are used as source of calcium for animal feeds. (ii) Its also serve as a source of animal protein for man. (1aiii) TABULATE =SPECIMEN A= (i)They have a soft, slimy body with a coiled shell on their back. (ii) They move by using a muscular foot that glides over a layer of slime they produce. =SPECIMEN B= (i)They do not have a shell, but their skin is thick and covered in warts or bumps. (ii)They have muscular hind legs designed for hopping (1aiv) (i) It allows researchers and ecologists to understand its role in the ecosystem (ii) It aids in conservation efforts and wildlife management. (1av) (i) Webbed Feet (ii) Large Muscular Thighs (1bi) (i) Specimen B (Toad): Amphibia (ii) Specimen C (Spider): Arachnida (iii) Specimen D (Crayfish): Malacostraca (1bii) (i) Eight legs (ii) Multiple eyes (1biii) [img]https://i.imgur.com/BVmrFnQ.jpeg[/img] (1biv) (i) Camouflaged exoskeleton (ii) Paddle-like appendages (iii) Sensory adaptations ======================================== *2023 NECO BIOLOGY PRACTICAL* (2ai) E: Spirogyra filaments. F: Mucor/Rhizopus. G: Groundnut seedling (A week old). H: Maize seedling (A week old). I: Microscope. J: Slide (plain). (2aii) E habitat: Freshwater. F habitat: Damp and decaying organic matter. (2aiii) E mode of nutrition: Autotrophic (photosynthesis). F mode of nutrition: Saprophytic (absorbing nutrients from dead organic matter). (2iv) One reason for classifying E in (2aii) is its habitat in freshwater. (2b) Mount E and F separately on J and use I to observe the setup. (2bi) Observable features of E: 1. Green coloration. 2. Long, filamentous structure. 3. Presence of chloroplasts. Observable features of F: 1. Fuzzy, cotton-like appearance. 2. Rapid growth and spreading. 3. Formation of sporangia. The observed color of E is green, and its role in life is photosynthesis. Colour: Green Role: Photosynthesis (2ci) Class of G: Angiospermae (Dicotyledonae). Class of H: Angiospermae (Monocotyledonae). 2cii) Germination in G: Hypogeal germination Germination in H: Epigeal germination 2ciii) Venation in G: Parallel venation Venation in H: Parallel venation 3ai) Specimen K: Pigeon Specimen L: Agama Lizard Specimen M: Rat Specimen N: Tilapia (3aii) 1: Scales 2: Tongue 3: Eyes 4: Ears (3bi) 1: Wings 2: Hollow bones 3: Keen eyesight 4: Strong flight muscles 5: Beak adapted for capturing prey 3ci) 1: Wings 2: Keen eyesight FREE SESSION ENDS TODAY….. MESSAGE US ON WHATSAPP WITH 08162563540 FOR YOUR PAYMENT…… AM NO MORE DROPPING FREE ANSWERS HOPE YOU ALL KNOWCategories: NECO SSCE Syllabus Questions
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