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BIOLOGY PRACTICAL ACTIVITIES – WELL EXPLAINED To observe prepared slides of transverse section of stems of herbaceous and woody plants. Permanent slides of transverse sections of: Herbaceous plant and Woody plant are obtained. The permanent slide of an herbaceous plant is placed onto the stage of the microscope. Observations under the low power and medium […]
BIOLOGY PRACTICAL ACTIVITIES Comparison of Vertebrate Limbs Limbs of various vertebrates are provided: e.g. fish- Tilapia, amphibian-frog reptiles, lizard; bird – domestic fowl (chicken), mammal- rabbit. Their anatomy can be studied. The following can be noted: That all limbs have five sets of bones; A single upper bone- the femur in hind limb and […]
BIOLOGY PRACTICAL ACTIVITIES Examining the stages of mitosis About 2 mm of a root tip of onion bulb is cut off and placed on a microscope slide. A stain e.g. aceto-orcein is added and the root tip macerated using a scapel. A cover slip is added and observations made. Different stages of mitosis can be […]
BIOLOGY PRACTICAL ACTIVITIES Ecology is best studied outdoors. Students identify a habitat within or near the school compound, e.g. a flower bed. The quadrat method is used. Observation and recording of the various animals as well as their feeding habits is done. Birds that feed on the plants or arthropods in the area studied are […]
BIOLOGY PRACTICAL ACTIVITIES To examine Bryophyta A mature moss plant is obtained. The specimen is observed using a hand -lens. A labelled drawing showing structures is made: rhizoids, set a capsule, gametophyte, sporophyte. To examine Pteridophyta A mature fern plant is obtained. It is observed using a hand lens. Sori can be seen on the […]
BIOLOGY PRACTICAL ACTIVITIES To Show the Gas Produced When the Food is burned A little food substance e.g., maize flour or meat is placed inside a boiling tube. The boiling tube is stoppered using a rubber bung connected to a delivery tube inserted into a test-tube with limewater. The food is heated strongly to bum. […]
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