SCIENCE F2 CHAPTER 3

BIODIVERSITY
-VARIETY OF DIFFERENT TYPE OF LIVING ORGANISM IN PARTICULAR AREA


CLASSIFICATION OF ANIMAL
A VERTEBRATE
  - animal with backbone
1. FISH
-cold blooded (poikilotherm)
-breathe or absorb oxygen in water through gill
-skin covered with hard scale
-have fin and tail
-streamline body
-live in water
-lay egg
-external fertilization (ovum and sperm fuse out of female body)


2. BIRD
-warm blooded (homeotherm)
-breathe with lung
-body cover with feather
-have beak and wing for fly, but not all can fly
-lay egg with shell
-internal fertilization (ovum and sperm fuse inside the female body)


3. MAMMAL
-warm blooded
-breathe with lung
-body cover with skin and fur
-give birth, except duck-billed, playtypus, anteater
-fed on milk from mammary gland
-internal fertilization


4. REPTILE
-cold blooded
-breathe with lung
-body covered with dry and scaly skin
-have 2 pair of limb to move freely, except snake
-lay egg withe shell
-move use limb and tail
-live on land and water
-internal fertilization


5. AMPHIBIAN
-cold blooded
-young breathe oxygen dissolve in water through gill
-adult breathe with lung and moist skin
-2 pair of limb to move freely
-lay jelly-covered, without shell egg
-live on both land and water


B INVERTEBRATE
  -no backbone
  -make up most animal in world
  -with jointed leg: crab, centipede, spider, millipede, centipede, butterfly
  -without jointed leg: i)worm- earthworm, flatworm
                       ii)not worm- starfish, snail, sea anemone


CLASSIFICATION OF PLANT
A FLOWEING PLANT
1. MONOCOTYLEDON
-1 cotyledon
-parallel vein
-fibrous root
-soft stem
-grass, paddy, coconut


2. DICOTYLEDON
-2 cotyledon
-network vein
-tap root
-woody stem
-rose, mango, hibiscus


B NON-FLOWERING PLANT
1. FUNGI
-yeast
-mushroom
-mould
-bracket fungus


2. ALGAE
-chlamydomonas
-seaweed
-spirogyra


3.MOSSES
-liverworts


4. FERNS
-bird's nest fern