Welcome to our website darasahuru.co.tz. In this article you will find Biology Practical Preparation For NECTA Examination (CSEE), Guideline For Preparing Biology Practical At Secondary :- BIOLOGY PRACTICAL NECTA FORM FOUR EXAM (CSEE), Prepare yourself for Biology Practical Form Four, Topics is covered:-
1. CLASSIFICATION OF LIVING THINGS
2. NUTRITION
3. GROWTH
4 TRANSPORTATION OF MATERIALS IN LIVING THINGS
5. REPRODUCTION
1.Kingdom Plantae
ii. They are eukaryotic with cellulose cell walls
iii. They are autotrophs
iv. They store foods as starch
v. Some reproduce sexually and others asexually
vi. They show limited movement
Angles of concentration or Possible divisions (CSEE NECTA 2024)
1. Division bryophyta
Plants in this division include mosses and liverwort
Distinctive features of division bryophyta
i. They are generally small in size
ii. They have leaf-like(thallus) and root-like(rhizoids) structures but no true leaves and roots
iii. They lack vascular tissues (xylem and phloem)
iv. They are commonly found in moist areas
v. They reproduce both sexually and asexually
vi. They show alternation of generation Structure of Mosses (moss plant)
The capsule is the structure where sporangia are housed.
Advantages of moss plants
i. Mosses help to decompose dead logs.
v. Mosses also provide shelter for insects and other small animals.
vi. Some birds and mammals use mosses as nesting material.
vii. Mosses are also used as cushioning material in furniture or in shipping, for example when transporting flowers.
ix. Sphagnum moss has antiseptic properties. During World War I, it was widely used as a bandage for wounded soldiers.
Disadvantages of moss plants
i. Mosses occur as weeds in gardens and other places. They are very difficult to get rid of.
ii. Mosses growing around ponds and other small water bodies can grow onto the water and cover it completely, causing the area to become marshy.