S.1 Integrated Science Diversity of Living Things
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This document discusses the diversity of living things and their habitats. It states that scientists estimate there are between 4-12 million types of living things on Earth. These living things vary in size, body form, and structure. They live in different habitats like deserts, oceans, forests, and polar regions. Living things adapt to their habitats through body features and behaviors. The document also covers variations within living things and humans. It notes that variations can be continuous, like height, or discontinuous, like blood type. It concludes that we should respect and accept individual differences.
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S.1 Integrated Science Diversity of Living Things
- 1. SECONDARY ONE INTEGRATED SCIENCE Unit 2 Looking at living things 2.3 Diversity of living things Dec-2010
- 4. THE WIDE VARIETY OF LIVING THINGS OK! Let me count how many living things! 5… 10… There are at least 10 living things just at a corner of a park! Oh! I can’t imagine how many kinds of living things in the world!
- 5. THE WIDE VARIETY OF LIVING THINGS Let me tell you the answer. Scientists estimate that there are 4 million to 12 million kinds of living things on Earth.
- 6. THE WIDE VARIETY OF LIVING THINGS WOW! However, I have a question. Why is the total number of kinds of living things on Earth only an estimate?
- 7. THE WIDE VARIETY OF LIVING THINGS It is because some living things cannot be seen directly and some of them live in the deep sea or hide themselves from human. So the exact number remains unknown.
- 9. THE WIDE VARIETY OF LIVING THINGS
- 11. LIVING THINGS AND THEIR HABITATS Behaviours Body feature s help living things to adapt to their habitats
- 12. IN THE FOREST some plants climb on tree trunks reach for more sunlight
- 13. IN THE GRASSLAND antelopes run fast escape from predators
- 14. IN THE DESERT cacti store a lot of water survive in dry environment
- 15. IN THE FRESHWATER STREAM webbed feet frogs ha ve webbed feet swim in water
- 16. IN THE OCEAN dolphins ha ve a streamlined body swim with little water resistance
- 17. IN THE POLAR REGION seals ha ve a thick la y er of fat under skin keep warm in cold environment