above. (the focus here is to recognize how living things differ from one another) We divide Earth’s biodiversity into broad groups based on traits such as having a nucleus (eukaryotes)‚ not having a nucleus (prokaryotes)‚ or being unicellular or multicellular. 4. Be able to explain the difference between Producers and Consumers in paragraph form‚ and be able to provide an example of each. Producers are an autotrophic organism capable of producing complex organic compounds from simple inorganic molecules
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Chapter 1: Geology is the science that studies the history of Earth and its life. Anthropogenic (human generated) activities such as fossil fuel combustion impacting Earth has led to the study of Earth as a series of systems (series of components that interact to produce a larger‚ more complex whole). Geology is the science that examines the evolution of the natural processes on Earth‚ the evolution of life and the evolution of these interactions and how they caused the earth to evolve towards its
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prokaryotes 5. organelles 6. prokaryotic cell 7. eukaryotic cell 8. The giant amoeba is 5000 times larger than the smallest bacterium. 9. Prokaryotic and eukaryotic cells carry out the functions required for living‚ and both contain cytoplasm as well as cell membranes. Eukaryotic cells contain organelles and have a nucleus‚ whereas prokaryotic cells do not. 10. Eukaryotic; the cells of all multicellular living things‚ including humans‚ are eukaryotic. Section Review 7-2 1. b 2. g 3. a 4. c
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Scientists believe that eukaryotic organisms such as the protists evolved from the prokaryotes. There are two main theories which describe how this transition may have occurred. The first is the endosymbiotic theory‚ or enosymbiosis‚ and the other is the autogenous theory‚ or autogenisis. These two theories are not mutually exclusive‚ meaning one or the other could account for different parts of eukaryotic cells. The endosymbiotic theory states that the formation of eukaryotic cells were symbiotic
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single-celled organism‚ is an organism that consists of only one cell‚ unlike a multicellular organism that consists of multiple cells. Historically the simple single celled organisms have sometimes been referred to as monads.[1] The main groups of unicellular organisms are bacteria‚ archaea‚ protozoa‚ unicellular algae and unicellular fungi. Unicellular organisms fall into two general categories: prokaryotic organisms and eukaryotic organisms.Unicellular organisms are believed to be the oldest form of life
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Subject:Botany(101) Topic:Five Kingdom Classification System Submitted To: Mam Samina Submitted By: Shahid Zafar Registration No: 2013-ag-2212 Section: B Community College University of Agriculture Faisalabad
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prokaryotic and eukaryotic cells. Because all cells are similar in nature‚ it is generally thought that all cells came from a common ancestor cell termed the last universal common ancestor (LUCA). These LUCAs eventually evolved into three different cell types‚ each representing a domain. The three domains are the Archaea‚ theBacteria‚ and the Eukarya. More recently various fusion hypotheses have begun to dominate the literature. One proposes that the diploid or 2N nature of the eukaryotic genome occurred
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centuries in the past‚ prokaryotic organisms conquered our world. Afterwards‚ around 1.5 billion centuries ago‚ a nucleated cell named eukaryote evolved then the Cambrian blast‚ in the vicinity of 0.5 billion centuries ago‚ aided in the development of multicellular entities. The cell partitions of prokaryotes are normally designed of a dissimilar molecule to that of eukaryotes. Furthermore‚ they are different because eukaryotes comprise of merely a solitary circle of steady chromosomal DNA
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Chapter-8 Cell: The Unit Of Life What is a cell? Cell is the basic or fundamental structural and functional unit of an organism. What is cell biology? The branch of biology that deals with the study of cell structure and function is called cell biology. DISCOVERIES; Who discovered cell? Robert Hooke observed a live cell in 1665. He observed the cell(actually the cell walls) in the slice of cork under his compound microscope ‚coined the term cell‚ recorded his observations in micrographic
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Plants‚ also called green plants‚ are multicellular eukaryotes of the kingdom Plantae. They form a clade that includes the flowering plants‚ conifers and other gymnosperms‚ ferns‚ clubmosses‚ hornworts‚ liverworts‚ mosses and the green algae. In biology‚ kingdom (Latin: regnum‚ pl. regna) is the second highest taxonomic rank below domain. Kingdoms are divided into smaller groups called phyla. Traditionally‚ textbooks from the United States used a system of six kingdoms. A fungus (/ˈfʌŋɡəs/; plural:
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