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Transcript
Make a list of all of the things you need for survival. Rank them in order of importance. Write a paragraph about why you ranked them in the order that you did – Write in complete sentences. At least 5 lines. Ecosystem – all of the organisms living in an area together with their physical environment Ecosystems are connected and do not have clear boundaries. For example, the beach and the ocean. Biotic and Abiotic Factors Biotic Factors – the living and once living parts of an ecosystem, including all plants and animals. Also includes dead organisms, dead parts of organisms, and the organisms’ waste products Abiotic Factors – the nonliving parts of the ecosystem. Include air, water, rocks, sand, light, and temperature Organisms Organism – an individual living thing Species – a group of organisms that can mate to produce fertile offspring Populations Population – all of the members of the same species that live in the same place at the same time Communities Community – a group of various species that live in the same place and interact with one another Is it a population? Sun Valley High School freshmen. ▪ Yes – same species, same time, same place Sun Valley High School and Penncrest High School freshmen. ▪ No – not the same place Sun Valley High School Class of 2015 and Sun Valley High School Class of 1997. ▪ No – not the same time Mammals living in Ridley Creek State Park. ▪ No – not the same species Deer living in Ridley Creek State Park. ▪ Yes – same species, same time, same place First 10 minutes Discuss Test Two or more Z’s=detention In 6 lines or more, explain what it means to be an Honors student? What skills do you posses that make you an honors student? What are your parents expectations of you as an honors student? Do you want to go to college? Do you think staying in honors classes will get you there? The place an organism lives Every habitat has specific biotic and abiotic factors that the organisms living there need to survive. What characterisitcs do you think help the chameleon when it hunts? Explain your answer – Write in complete sentences. At least 5 lines. Natural Selection – the organisms who are best suited for their environment will survive and reproduce Evolution – a change in the genetic characteristics of a population from one generation to the next Adaptation – an inherited trait that increases an organism’s chance of survival and reproduction in a certain environment Give at least three examples of adaptations. Explain how rabbits with brown fur might be well suited for some environments but not others. Coevolution – the process of two organisms evolving in response to long-term interactions with each other Example: Plants and Pollinators Plants are designed to attract the pollinator; pollen will stick to the pollinator Pollinators are designed to be able to access the nectar from the plant Artificial Selection – selective breeding of organisms by humans for specific characteristics Example: Dog breeds Resistance – the ability of one or more organisms to tolerate a particular chemical designed to kill it Examples: pesticide resistance, antibiotic resistance, “superbugs”