2. BIODIVERSITY AND ADAPTION
Biodiversity is the great variety of different forms of
life or species that form the biosphere.
They transform or evolve into different organisms or
species over millions of years.
Biological evolution is the slow and gradual changes
that living beings have undergone in the history of the
Earth.
3. THE HISTORY OF LIFE ON EARTH:
EVOLUTION
Fossils are the remains of organisms or footprints of
past living things, which were buried under sediment
that formed sedimentary rocks.
4. ACTIVITIES
1. Explain what biodiversity is.
2. Some aquatic animals like dolphins are not fish. How
have they adapted to move in the water?
3.What is biological evolution?
5. ACTIVITIES
4.The following definitions refer to…
a) The variety of different forms of life in the
biosphere.
b)The process of slow changes that living beings have
undergone during the history.
c)The remains of organisms that lived in the past.
6. THE FIVE KINGDOMS
Monera kingdom: Ex: Bacterias
Protoctist kingdom: Protozoa and Algae.
Fungi kingdom: Ex: Mould and Mushrooms.
Plant kingdom: Ex: Oak tree
Animal kingdom: Ex: Dog
8. THE PROTOCTIST KINGDOM
Prtoctists are unicellular and multicellular
organisms. They are eukaryotes and never
form tissues.
Types:
Protozoa: They are heterotrophs. Ex: Amoebae
Algae: They are autotrophs and perform
photosynthesis.
9. ACTIVITIES
1.Draw the different types of bacteria.
2.The bacteria that live in our digestive system
help us digest food and produce vitamins. Are
they parasites, saprophytes or symbionts?
3. The bacteria that live inside the root of
leguminous plants are:
a)Parasites
b)Symbionts
c)Autotrophs
10. 4. Complete the following sentence:
Cells of Protoctist kingdom are_____________ and cells of
Monera kingdom are_____________ which means they
don’t have ______________.
5.Complete the following sentence:
Algae are____________ beacuse they make
photosynthesis. Their cells have_______________ like
the plants.
11. THE FUNGI KINGDOM
Fungi are unicellular or multicellular organisms.
They are eukaryotes and they have cellular wall.
They dont’ form tissues.
They are heterotrophs.
Ex: Mould, yeast and mushroom.
Nutrition: Saprophytes,Parasites, Symbionts.
Reproduction: They produce cells called spores.
Interaction: They live in the soil, in dark places.
12. PARTS OF A FUNGI
1- Cap
2- Stalk
3- Volva
4-Hyphae-Mycelium
Athlete
foot
Yeast
13. ACTIVITIES
1.Draw a mushroom in your notebook and
write the names of its parts.
2.The three types of fungi nutrition are…
3.Copy and complete the sentences:
a)The fungi’s cells are__________ and they
have__________.
b)Yeasts are _______________ fungi.
14. 1. Classify the following organism in the tables: tiger, deer,
tetanus bacteria, mushroom, cholera bacteria, pine tree, rose,
eagle, moss, paramecium, oak, camel, Mouse.
Monera Protists Fungi Plant Animal
Autotrophic nutrition Heterotrophic nutrition