BIOLOGY Diversity of Organisms. Today I want to talk about Diversity of Organisms. There are three...
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Transcript of BIOLOGY Diversity of Organisms. Today I want to talk about Diversity of Organisms. There are three...
BIOLOGYBIOLOGY
Diversity of OrganismsDiversity of Organisms
Diversity of OrganismsDiversity of Organisms
Today I want to talk about Diversity of Today I want to talk about Diversity of Organisms. There are three main topics:Organisms. There are three main topics:
A)A) Five kingdoms of organismsFive kingdoms of organisms B)B) Classification of AnimalsClassification of Animals C)C) Classification of Plants Classification of Plants
Five kingdoms of organismsFive kingdoms of organisms
11 ProkaryotesProkaryotes They include bacteria & blue-green algae. They are very tiny and can seen with the high power of a light
microscope. They consist of a single cell but do not have any true
nucleus ,mitochondria or chloroplasts.
< Anthrax bacteria
A flagellate >
Five kingdoms of organismsFive kingdoms of organisms
22 ProtoctistsProtoctists They are tiny and can be seen with the low power of a microscope. They consist of the single cell with a true nucleus but some are mu
lticellular. They live mainly in water or inside other organisms.
< Amoeba
Paramecium >
Five kingdoms of organismsFive kingdoms of organisms
33 FungiFungi They are made up of a single call or thread-like structures called hyphae. They have cell wall and do not move.They have no chlorophyll and any
roots, stems or leaves. They are usually saprophytic or parasitic and live in soil ir inside other o
rganisms.
< Yeast
Mushroom >
Five kingdoms of organismsFive kingdoms of organisms
44 PlantsPlants All plant cells have cell wall and green plant cells contain
chlorophyll. They make their own food by photosynthesis. They do not move from place to place.
< Plant
Green plant>
Five kingdoms of organismsFive kingdoms of organisms
55 AnimalsAnimals They do not have any cell wall. They cannot make their own food and must take in food. Most of them can move from place to place.
Classification of animalsClassification of animals
Animals
Vertebrates(with a backbone)
Invertebrates(without a backbone)
Fish Amphibians Reptiles Birds Mammals
VertebratesVertebratesAA )) FishFish Their bodies are covered by silmy scales.Their bodies are covered by silmy scales. They have fins.They have fins. Their bodies are streamlined.Their bodies are streamlined. They breathe with gills.They breathe with gills. They are poikilotherms.They are poikilotherms.
VertebratesVertebrates
B)B) AmphibiansAmphibians They can live both on land and in waterThey can live both on land and in water They have wet, silmy skins but no scales.They have wet, silmy skins but no scales. They have 4 limbs when they are adult.They have 4 limbs when they are adult. They are poikilotherms.They are poikilotherms.
VertebratesVertebrates
C)C) ReptilesReptiles Many live on land.Many live on land. They have skin covered by hard, dry scales.They have skin covered by hard, dry scales. They breathe with lungs.They breathe with lungs. They are mostly poikilotherms.They are mostly poikilotherms.
VertebratesVertebrates
D)D) BirdsBirds They have feathers.They have feathers. Most can fly with wings but some cannot.Most can fly with wings but some cannot. They have beaks.They have beaks. They breathe with lungs.They breathe with lungs. They are homoiotherms.They are homoiotherms.
VertebratesVertebrates
E)E)MammalsMammals Their bodies are covered with hair.Their bodies are covered with hair. Females have well-developed mammary glands for feeding their young.Females have well-developed mammary glands for feeding their young. They breathe with lungs.They breathe with lungs. They are homoiotherms.They are homoiotherms.
InvertebratesInvertebrates
Most of them are small.Most of them are small.
Classification of plantsClassification of plants
Plants
Flowering plants(produce flowers)
Non-flowering plants(do not produce any flowers)
Monocotyledons Dicotyledons Mosses Ferns Gymnosperms
Flowering plantsFlowering plants
A)A) Monocotyledonous plantsMonocotyledonous plants They have only one seed leaf in the seed.They have only one seed leaf in the seed.
Iris Rice
Flowering plantsFlowering plants
B)B) Dicotyledonous plantsDicotyledonous plants They have two seed leaves in the seeds.They have two seed leaves in the seeds. Their leaves have a network of veins.Their leaves have a network of veins.
Broad beanWater lily
Non-flowering plantsNon-flowering plants
A)A) MossesMosses They are small plants,but no roots.They are small plants,but no roots. They have chlorophyll but no vascular tissue.They have chlorophyll but no vascular tissue.
Polytrichum
Non-flowering plantsNon-flowering plants
B)B) FernsFerns They are small plants with true roots, stems and They are small plants with true roots, stems and
leaves.leaves. They have chlorophyll and vascular tissue.They have chlorophyll and vascular tissue.
dryopteris
Non-flowering plantsNon-flowering plants
C)C) GymnospermsGymnosperms They have large plants with roots, stems, leaves and They have large plants with roots, stems, leaves and
vascular tissue.vascular tissue. Most of them have needle-shaped leaves.Most of them have needle-shaped leaves.
Firs