The biosphere and biomes

Biosphere and Biomes

1. The Biosphere a nd Biomes

2. The Biosphere is that area of that earth where life exists. is that area of that earth where life exists. is the global sum of all ecosystems. area of the earth where life exists.

3. Ecosystems is an ecological unit that includes all the interacting parts of an environment in an area. T here are two factors of ecosystem, the biotic and abiotic factors.

4. Biotic Factor any  living  thing that  influences or  affects  an  ecosystem.

5. ABIOTIC FACTOR a ny non-living  condition or thing,  that   influences   or affects an ecosystem and the organisms in it.

6. BIOMES i s a large area identified by the presence of characteristic plants and animals. B iomes are separated into two very broad classifications: terrestrial biomes , or those on land, and aquatic biomes , or those on water.

7. Terrestrial Biomes

8. Polar Biomes the biomes found at the earth’s coldest extremes are the polar biomes.

9. Polar Biomes

10. TUNDRA a treeless biome blanketed by snow in the winter, forms a continuous belt across Northern America, Europe, and Asia.

11. TUNDRA

12. Coniferous Forest a biome that is dominated by conifers, cone-bearing evergreen trees such as pines, firs, spruces, and cedars.

13. Coniferous Forest

14. Deciduous Forest is a biome characterized by the presence of trees that lose their leaves in the fall.

15. Deciduous Forest

16. GRASSLAND i s a biome dominated by grass.

17. GRASSLAND

18. DESERT a re dry areas where rainfall averages less than 25 cm per year.

19. DESERT

20. RAIN FOREST There are two types of rain forests biomes, the tropical rain forest and the temperature rain forest. 1. Tropical rain forest biome - is found near the equator where rainfall and sunlight abound . 2. Temperature rain forest - these are moderate temperatures and highly humidity.

21. RAIN FOREST

22. AQUATIC BIOMES

23. Marine Biome Marine Biome is the earth’s ocean and its associated areas. Ecologists have subdivided marine biomes into three areas: ocean, intertidal zones, and estuaries.

24. OCEAN it covers about 70 percent of the earth and has an average depth of 3.7 km. The ocean is divided into two zones: the open ocean, or pelagic zone, and the ocean bottom, or benthic zone.

25. TWO ZONES OF OCEAN Pelagic Zone - the open ocean 2. Benthic Zone - the ocean bottom

26. OCEAN

27. Intertidal Zones Along ocean shores, the tides produce a rhythmic rise and fall of water in an area called the intertidal zone.

28. Intertidal Zones

29. ESTUARIES is a biome found throughout the world where fresh water rivers and streams flow into the sea.

30. ESTUARIES

31. freshwater Biome Ecologists have subdivided marine biomes into three areas: L akes and Ponds and Rivers and Streams. Low levels of dissolved salts characterized the freshwater biome.

32. LAKES AND PONDS It is divided into two categories. 1. Eutrophic lakes are rich in organic matter and vegetation, making the waters relatively murky . 2. Oligotrophic lakes contain little organic matter. The water is much clearer, and the bottom is usually sandy or rocky.

33. LAKES AND PONDS

34. Rivers and Streams b ody of water that flows down a gradient, or slope, toward its mouth.

35. Rivers and Streams

36. Thank you for listening, Have a nice day!  Jan Dominique S. Cayabyab BSED 1-A Mathematics