NECO 2023 BIOLOGY PRACTICAL
SPECIMENS Specimen A - Land snail Specimen B - Toad Specimen C - Spider Specimen D - Crayfish Specimen E - Spirogyra filaments Specimen F - Mucor/Rhizopus Specimen G - Groundnut seedling (A week old) Specimen H - Maize seedling (A week old) Specimen I - Microscope Specimen J - Slide (plain) Specimen K - Pigeon Specimen L - Agama Lizard Specimen M - Rat Specimen N - Tilapia ANSWERS (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 ro