is high d. the per capita feeding rate of predators is reduced when their density is low e. none of the above Question 2. A copepod species (the predator‚ measured in copepods/m3 of water) feeds on algae (measured in cells/m3 of water) in freshwater lakes. Assume that the interaction is well-represented by the Lotka-Volterra predator prey model: where r = 1/week a= 0.01/copepods/week f= 0.01 copepods/prey q= 0.1/ week An experimental lake was initiated with 1000 algae cell/m3
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types of aquatic biomes: ____________________ and __________________ Check the two below. A: deep sea biome B: marine biome C: freshwater biome D: river biome 5. There are 4 major terrestrial (land) biomes. Check the two that apply. 1. Desert 2. Forest 3. ____________ 4. ____________ A: Prarieland B: Flatland C: Grassland D: Tundra 6. Why are freshwater and marine biomes the most important of all biomes? A: They are the biggest biomes. B: They have the most varied species. C: They
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popular ornamental fish with more than 200 million sold in the U.S alone • Two dozen regional wholesalers located throughout the country distribute freshwater ornamental fish to an estimated 5000 retail establishments for sale to consumers • Total sales of pet stores are increasing at an annual rate of 7% • Consumer market for freshwater ornamental fish and related products in U.S exceeds $700 million annually and is growing at a rate of 9% a year 4-Threats: • The blanket regulation
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Nuclear Energy There are many advantages and disadvantages of using nuclear power. Nuclear power is said to prevent power outages that happen in areas without nuclear power. For an example‚ if we were using hydroelectricity and the dam suddenly malfunctions‚ then we won’t have electricity until someone fixes the dam‚ and that would be difficult if it happened in the middle of the night. However‚ on the other hand‚ nuclear power is also considered toxic and it pollutes the Earth with harmful and
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• There are different types of habitats for certain animals. • There are so many types of animals such as Mammals‚ Reptiles‚ Birds‚ Insects‚ Aquatic Animals‚ Spiders. • Habitats: Deserts‚ Grasslands‚ Forests‚ Mountains‚ Freshwater‚ Oceans‚ Tundra. • People are mammals. So are dogs‚ cats‚ and horses. Ahmad Bickley ANIMALS 1. Fish are vertebrates that live in water and have gills‚ scales and fins on their body. 2. Amphibians are born in the water. When they are born‚ they breath with gills like
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Actinopterygii ! Infraclass Chondrostei ! Infraclass Holostei ! Infraclass Teleostei ! Subclass Sarcopterygii ! Order Crossopterygii ! Order Dipnoi examples jawless fishes hagfish lampreys jawed fishes extinct Paleozoic sharks Paleozoic freshwater sharks typical sharks skates and rays chimaeras or ratfishes various extinct fishes higher bony fishes ray-finned fishes sturgeon‚ paddlefish; primitive ray-finned fishes gars‚ bowfins; dominant ray-finned fishes of Mesozoic most bony fish; dominant
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UNIQUE AND THREATENED BIODIVERSITY The patchwork of isolated islands‚ the tropical location of the country‚ and the once extensive areas of rainforest have resulted in high species diversity in some groups of organisms and a very high level of endemism. There are five major and at least five minor centers of endemism‚ ranging in size from Luzon‚ the largest island (103‚000 km²)‚ which‚ for example‚ has at least 31 endemic species of mammals‚ to tiny Camiguin Island (265 km²) speck of land north
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Invertebrates Jellyfish The Jellyfish are truly a wonder of nature. They have always been objects of deep observation and admiration. Not to mention the fact‚ that they are also considered in great awe‚ fear and even repulsion by some folks. The repulsion and fear have originated from the fact that these creatures can be quite beautiful to behold‚ but extremely painful when stung by them. These marine creatures are classified under the group of Cnidarians. They typically have a soft jelly like consistency
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directly from one person to another‚ but is transmitted through infected mosquitoes. Female mosquitoes bite Aedes people were injured and then become infectious throughout their life span ranging from 15 to 60 days. Female mosquitoes lay eggs Aedes in freshwater and stagnant. Going through the stages of growth of the eggs take approximately 10 days and then graduated adult gnats. Signs and symptoms of disease Fever Joint aches Headache Swollen lymph nodes Muscle aches Vomiting weakness‚ discomfort
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Humans consume water‚ discard it‚ poison it and waste it without considering the consequences. Supplying enough water in the right quantity‚ at the right time and in the right place has always been a concern. All of life depends on water. It is as important to life as air‚ food and sunlight. For this reason water has always played an important role in civilizations throughout history. People can live for days without food but will not survive for very long without water. The problem with water is
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