1. a. List four cell structures that were common to both plant and animal cells. (4 points) b. What structures were unique to plant cells? (2 points) c. What structures were unique to animal cells? (2 points)--Answer below: a. 1. Rough ER 2. Smooth ER 3. Golgi Apparatus 4. Nucleus b. 1. Chloroplast 2. Cell walls 3. Vacuole c.
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alternative. Which is why California is planning on building a solar desalination plant in order to bring more freshwater for people in the Central Valley. This would be the first solar desalination facility California has. Who is building the facility? The announcement came from a project (http://www.prnewswire.com/news-releases/californias-first-commercial-solar-desalination-plant-to-bring-freshwater-to-the-central-valley-300113489.html)
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conservation of natural resources Introduction conservation of natural resources‚ the wise use of the earth’s resources by humanity. The term conservation came into use in the late 19th cent. and referred to the management‚ mainly for economic reasons‚ of such valuable natural resources as timber‚ fish‚ game‚ topsoil‚ pastureland‚ and minerals‚ and also to the preservation of forests (see forestry)‚ wildlife (see wildlife refuge)‚ parkland‚ wilderness‚ and watershed areas. In recent years the science
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Clown Fish The clown fish (also known as the anemonefish) is a small species of fish that is found around tropical coral reefs. The most commonly known species of clown fish is orange with white markings but clown fish can be found in many different colours and can also differ in shape. There are 28 recognised species of clown fish that are found in the Indian and Pacific Oceans. The clown fish is also found as far north as the Red Sea and inhabits the Great Barrier Reef‚ on the Australian
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Background information Daphnia Magna is an arthropod that can grow up to 5 mm. It is a filter feeder meaning it feeds off of suspended particles in the water. Daphnia can consume particles that range from 1µ to 50µ. The heart of Daphnia is located dorsally meaning it’s located in the back. The heart rate of Daphnia can range due to many variables‚ one being temperature. "At a temperature averaging 20o C its heart rate is about 200 beats per minute."2 As the temperature surrounding the Daphnia
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forget that the majority of our earth is covered in oceans and freshwater. Almost two thirds of the world’s population lives within 250 miles of an ocean coastline. One of the many issues we are facing in our waters is saltwater intrusion and salinization. Saltwater intrusion and salinization is defined as the increase of chloride ion concentrations in freshwater aquifers or more simply put the movement of saline water into freshwater aquifers. When fresh water is withdrawn at a faster rate than
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Formation of Hydrocarbons Types of hydrocarbons Parameters for hydrocarbon accumulation Phases of alteration of organic matter Types of kerogen Migration of hydrocarbons Five Major Types of Hydrocarbons Kerogen: Kerogen is a fine-grained‚ amorphous organic matter. It is not soluble to normal petroleum solvents‚ like carbon disulfide. Its chemical composition is 75% C‚ 10% H‚ 15% other (sulfur‚ oxygen‚ nitrogen‚ etc.). It is very important in the formation of hydrocarbons because it is what generates
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sunlight can reach deeper into the water; this lets more aquatic animals to grow. Although they do provide benefits to our ecosystem they can also be very damaging; they can clog pipes‚ they eat phytoplankton which leaves less food for fish and zooplankton. They tend to grow on manmade structures which affect the governments and business owner’s financial troubles. In my opinion difficulty plays an important role in our life; if we don’t experience the bad things how will we know what the good things
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Ecosystems at Risk Ecosystems and their functioning What is an ecosystem? Ecology – the science that examines the interactions between organisms and their living (biotic) and non-living (abiotic) environment. Groups of organisms and their biophysical environment interact and exchange matter and energy. Ecosystem – the dynamic complex of plant‚ animal and micro-organism communities and their non-living environment as a functional unit. Ecosystems are dynamic; constantly changing and adapting
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Crayfish – also called crawfish‚ crawdads‚ freshwater lobsters‚ or mudbugs – are freshwater crustaceans resembling small lobsters‚ to which they are related; taxonomically‚ they are members of the superfamilies Astacoidea and Parastacoidea. They breathe through feather-like gills and are found in bodies of water that do not freeze to the bottom. They are mostly found in brooks and streams where there is fresh water running‚ and which have shelter against predators. Most crayfish cannot tolerate polluted
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