Presentation is loading. Please wait.

Presentation is loading. Please wait.

Unit 6 Organisms and the environment

Similar presentations


Presentation on theme: "Unit 6 Organisms and the environment"— Presentation transcript:

1 Unit 6 Organisms and the environment
: Observe and describe how different environments, including microhabitats in schoolyards and biomes, support different varieties of organisms

2 The 6 Main Biomes

3 The Fresh water Fresh water biome: example lakes, rivers, and streams
The freshwater biome covers only 0.8% of  the total water on this Earth General climate: On average temperatures range from 65 °F to 75 °F in the summer and  35 °F to 45 °F in the winter. Water which makes up this biome are distributed unevenly throughout the globe (W2). As a result the climate of these Biomes is greatly diverse depending on the region . Abiotic Factors:The geographical location of the water source on the planet. » The climatic conditions prevailing in the region. » The temperature of the region where this water body is located. ».» The angle at which sunlight hits the surface of the water body. » The precipitation pattern of the region in which the water source is located. »Biotic factors: There are over seven hundred species of fish , beavers, frogs, turtles, cattails and several species of insects are found in this biome, like mosquitoes and dragonflies.

4 Marine Biome: Example Ocean
The climate: The general climate of the marine biome is mostly varied. Since it is the largest biome in the world, the climate varies from -40 degrees fahreheit to over 100 degrees. The average temperature is 39 degrees Fahrenheit The abiotic factors: More than half of the world's rain fall over the ocean. Salt and rocks are also found in the ocean. The temperature varies. The biotic factors: Sharks, whales, sponges, plankton, dolphins, krill, lobster, oysters, jellyfish, starfish, kelp and shrimp

5 Share Time How might the abiotic factors influence the biotic factors in a biome? Ex. Light and temperature affect the plants and animals

6 Rainforest : Tropical rainforest biome is the most complex and species-rich biome on the Earth. 80% of all world's biodiversity is found here Climate: The climate is warm and wet. Located near the equator. Abiotic factors: it has more direct sunlight hitting land and sea than most other areas. This makes it very good for the growth. It rains more than ninety days a year in the rainforest, and between these rain storms, the warm sun usually heats up the earth. Biotic factors: rainforest contains 400 species of birds and 150 species of butterflies. Some animals of the rainforest have not yet been identified.

7 Grassland Climate: The grassland has no trees to block the wind, so it is always windier.  Grasslands are normally very dry.  The annual precipitation is 20cm-100cm.   Abiotic factors: The average temperature is about degrees Celsius (summer).  The winter temperature is about degrees Celsius and the summer is degrees Celsius.  The summer is wet while the winter is dry.  Another type of grassland is called a temperate grassland.  There are also only two seasons, with summers from warm to hot, and winters from cold to freezing.  The soil is full of nutrients. Biotic factors: Different grasses, grazing and herding animals.

8 Share Time Which ecosystem would be more likely to survive if a disease killed one animal?

9 Desert Biome Climate of the desert: Temperatures exhibit daily extremes because the atmosphere contains little humidity to block the Sun's rays. Desert surfaces receive a little more than twice the solar radiation received by humid regions and lose almost twice as much heat at night. Many mean annual temperatures range from 20-25° C. The extreme maximum ranges from ° C. Minimum temperatures sometimes drop to -18° C. Abiotic factors: Rainfall is usually very low and/or concentrated in short bursts between long rainless periods. The soil can range from sandy and fine-textured to loose rock fragments, gravel or sand. Biotic factors: Plants are mainly ground-hugging shrubs and short woody trees.

10 Tundra Climate: Tundra is the coldest of all the biomes. The arctic is known for its cold, desert-like conditions. The growing season ranges from 50 to 60 days. The average winter temperature is -34° C (- 30° F), but the average summer temperature is 3-12° C (37-54° F) which enables this biome to sustain life. Rainfall may vary in different regions Abiotic factors: Yearly precipitation, including melting snow, is 15 to 25 cm (6 to 10 inches). Soil is formed slowly. A layer of permanently frozen subsoil called permafrost exists, consisting mostly of gravel and finer material. Biotic :low shrubs, sedges, reindeer mosses, liverworts, and grasses 400 varieties of flowers crustose and foliose lichen

11 Share Time: What factors make a biome more habitable?


Download ppt "Unit 6 Organisms and the environment"

Similar presentations


Ads by Google