1st Secondary Biology Term One

1. Biology and the Scientific Thinking

	Biology and the Scientific Thinking 1
	Biology and the Scientific Thinking 2
	Bilharzias’ Worms 1
	Bilharzias’ Worms 2
	Bilharzias 1
	Bilharzias 2
	Detection of Bilharzia Eggs in the Lab

2. The Building Unit Of Living Organisms

	Structure Of Living Organisms
	Discovery Of The Cell
	Structure 0f Cell 1
	Structure 0f Cell 2
	Structure 0f Cell 3
	Structure 0f Cell 4
	Structure 0f Cell 5
	Microscope
	Plant Tissues 1
	Plant Tissues 2
	Animal Tissues 1
	Animal Tissues 2
	Animal Tissues 3
	Animal Tissues 4
	Types Of Cell Division 1
	Types Of Cell Division 2
	Types Of Cell Division 3

3. Man & The Environment

	Problems Of Pollution Of The Environment
	Air Pollution (1)
	Air Pollution (2)
	Air Pollution (3)
	Water Pollution
	Soil Pollution
	Food Pollution
	Sound Pollution
	Population Explosion
	The Population Problem In Egypt
	Stages In The Growth Of Human Populations
	The Food Problem In Egypt (1)
	The Food Problem In Egypt (2)
	Energy Problem
	Drought Problem
	Costal Decay And Dam Problems

4. Variationn of Living Organisms and their Classification

	Old and Recent Systems of Classification 1
	Old and Recent Systems of Classification 2
	Virus
	Kingdom Monera
	Kingdom Protista
	Kingdom Protista
	Kingdom Fungi
	Kingdom Fungi
	Plant Kingdom 1
	Plant Kingdom 2
	Plant Kingdom
	Animal Kingdom-Invertebrates “A”
	Animal Kingdom-Invertebrates “B”
	Animal Kingdom-Invertebrates
	Animal Kingdom-Vertebrates 1
	Animal Kingdom-Vertebrates 2
	Animal Kingdom-Vertebrates 3

5. Interaction Among Living Organisms

	Interaction Among Living Organisms 1
	Interaction Among Living Organisms 2
	Interaction Among Living Organisms 3
	Interaction Among Living Organisms 4
	Food Chain
	Food Chain
	Food Web
	Food Pyramids
	Food Pyramids
	Natural Balance

6. Change In Living Organisms

	Mechanism Of Evolution (1)
	Mechanism Of Evolution (2)
	The Idea Of Evolution And Mechanism Of Evolution
	The Modern Synthetic Theory (1)
	The Modern Synthetic Theory (2)
	Evidences Of Evolution (1)
	Evidences Of Evolution (2)

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