habitat presentation short by RahimUllah and Roqia Haroon

1. HABITAT
PRESENTED BY RAHIMULLAH & ROQIA
Department of environmental and conservation sciences

2. HABITAT
• The surroundings where an organism lives is known as its habitat.
• There are 2 components of ahabitat:
• 1. Biotic components.
• 2. Abiotic components.

3. • Biotic components: ·
• The living components of a habitat.
• Eg: Plants, animals & other micro-organisms
• Abiotic components: ·
• The non-living components of a habitat. ·
• Eg: Air, water, soil, sunlight, temprature. Rocks .

4. Adaptations ,
The presence of certain specific features or habits which enables a plant or an animal to adjust and live in
its surroundings is known as adaptations.

5. TYPES OF ADAPTATIONS
• Terrestrial adaptation:
• a) Desert Adaptation
• b) Mountain Adaptation
• c) Grassland Adaptation
• Aquatic Adaptation

6. • Adaptation:
• Two rows of long eyelashes.
• Function: Protect against blowing sand and the sun

7. FLOATING PLANTS
• They are of two types:
• Those which are rooted with floating leaves
• (e.g. Water Lily)
• Those which are not rooted, but just float on the surface
• (e.g. Duckweed).
• Stomata are found only on the upper surface of the leaf.
• Upper surface has a thick waxy cuticle to repel water and help to keep the stomata oDen and clear.

8. VEGETATIVE PROPAGATION
• Layering ·
• Involves getting roots to grow from the stem.
• I.e., magnolia tree
• Cutting · Using a short section of plant stems for propagation.
• Budding · Taking a bud from one plant and moving it to another.
• Grafting · Placing a section of a stem of one plant onto another plant.