producers‚ habitats and nursery areas. 3. Biodiversity is higher in the bottom region than in the surface region of the ocean because of the greater variety of habitats and food sources. 4. Scientific investigation of poorly understood marine and freshwater aquatic systems is a research frontier. B. Marine systems provide a variety of ecological and economic services. Conservative estimates value their ecological services at $21 trillion per year with at least 3.5 billion people—more than half of
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Green algae have many similarities to land plants. It has many variety body types and the multicellular forms do not have cells separated into tissues‚ which is what divides green algae from land plants. Green algae are a very diverse group of freshwater algae. Many green algae form long filaments. The cells stay attached after they divide. Spirogyra can become so numerous they form dense mats of growth in surfaces of ponds‚ which is called pond scum. This pond scum is interesting to see through
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Wetland Classification National Wetlands Classification Standard 4 goals: To provide a standard way of describing ecological units To characterize units in a frame work that will aid in natural resources management Identify classification units for inventory and mapping Provide uniformity in concepts and terminology Wetlands assigned a code‚ e.g. L1UB1Hx Broadest classification describes the system level The term system refers here to a complex of wetlands and deepwater habitats that share the influence
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The dragonfly (suborder Anisoptera) is an insect of the order Odonata‚ with large multifaceted eyes‚ two pairs of long transparent wings‚ and a long body. Dragonflies have very good eye sight due to their unique eye structure. Dragonflies typically eat mosquitoes‚ midges and other small insects like flies‚ bees‚ and butterflies. They are usually found around ponds‚ small streams‚ and swamps. Another name for them is mosquito hawks. Dragonflies do not bite or sting humans.[1] The life cycle
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throughout the solution. Then bottle #2 was shook for 30 seconds and then I added 10 drops to the 5mL test tube and shook the 5mL test tube for1 minute‚ and waited 5 minutes for the solution to settle and compared the color of the test tube to the freshwater nitrogen color card to determine the levels of nitrogen. The test tube was then cleaned out in the Greenhouse sink until the previous solution was cleaned from the glass tube. For the API Phosphate (PO_4^(-3)) the only steps that were different
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{text:bookmark-end} Human impact on the biosphere {text:bookmark-start} {text:bookmark-end} Protecting the biosphere There are two major ways of reducing human impact on the planet. The first is to monitor and respond to direct human impacts on the oceans and freshwater systems‚ the land and atmosphere (see direct impacts below). This approach is based on information gained from environmental science and conservation biology. However‚ this is management at the end of a long series of causal factors (known to ecologists
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calcium carbonate that can also be found in chalk. The term seashells usually refer to the exoskeleton of invertebrate animals. Most seashells are commonly found at the beaches but in a variety of habitats it is also possible to find shells from freshwater animals. But what was known in these animals they are made up of calcium carbonate. It will now be easy for the less fortunate country or people
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Chapter 32 – An Introduction to Animal Diversity All animals share a common ancestor‚ sponges are basal animals‚ eumetazoa is a clade of animals with true tissues‚ most animal phyla belong to the clade bilateria‚ and vertebrates and some other phyla belong Animals share a unique homeobox-containing family of genes‚ known as the Hox genes‚ suggesting that this gene family evolved in the eukaryote lineage that gave rise to animals. Hox genes play important roles in the development of animal embryos
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25 March 2013 New Jersey Department of Environmental Protection New Jersey Department of Environmental Protection was born on April 22‚ 1970‚ on America ’s first official "Earth Day". New Jersey became the third state in the country to consolidate past programs into a unified major agency and administer an aggressive environmental protection and conservation efforts. The core mission of the Department of Environmental Protection is the protection of the air‚ waters‚ land‚ and natural and historic
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body. It also has a muscular foot which enables the clam to burrow itself in mud or sand” (Miller and Levine). Clams are mollusks with two valves also nickname the bivalves. Clams are mostly marine animals however; the clams we will dissect are freshwater clams. Adult clams have bilateral symmetry but when they are larva clams have radial symmetry. A clam has complete digestion and has open circulation. The materials used in this lab were a preserved clam‚ a dissection pan‚ bent tip probe‚ scalpel
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