Study Questions: Chapter 28 1.) Archaea and Bacteria are the oldest‚ structurally simplest and most abundant forms of life. 2.) Name and describe seven ways in which prokaryotes differ substantially from eukaryotes? Unicellularity- fundamentally single-celled Cell Size- can vary (large range changes with species) Nucleoid- lack a membrane-bound nucleus but rather a nucleoid region Cell Division/Genetic Recombination- binary fission (does not use spindle) and do not have a sexual cycle Internal
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1)Positive interaction-which is beneficial to one or both partners. These include a) commensalism b)proto co-operation c) mutualism 2)Negative interaction-which is harmful to one or more of the participants. These include a)competition b)predation c)parasitism d)amensalism and e)antibiosis MUTUALISM-is an association between two or more organisms in which all is mutually benefited without any harm. It can be between plants and animals‚ different plants and between two animals. 1) Pollination by animals
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Biology‚ 7e (Campbell) Chapter 53: Community Ecology Chapter Questions 1) Communities can be linked by which of the following? I. predation II. systematics III. competition A) I only B) III only C) I and II only D) I and III only E) I‚ II‚ and III Answer: D Topic: Concept 53.1 Skill: Knowledge 2) Which of the following statements is consistent with the competitive exclusion principle? A) Bird species generally do not compete for nesting sites. B) The density of one competing species
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Top 10 Animal Adaptations Living Together Of all the wonderful adaptations in the animal kingdom‚ perhaps the most important is the habit of living together in communal or family groups. Animals can derive a lot of benefit from spending time with other members of the same species. They can help each other find food‚ defend against predators and care for young. Countless species engage in group living‚ either in herds‚ colonies‚ harems‚ complex societies or loose associations. But perhaps the simplest
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endophytic fungi that protect the plant from herbivores by producing toxins. The fungal endophyte‚ Neotyphodium coenophialum‚ in tall fescue (Festuca arundinacea) does tremendous economic damage to the cattle industry in the U.S. Various forms of parasitism are also fairly common among plants‚ from the semi-parasitic mistletoe that merely takes some nutrients from its host‚ but still has photosynthetic leaves‚ to the fully parasitic broomrape and toothwort that acquire all their nutrients through connections
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endoderm‚ fluid filled and serving as a hydrostatic skeleton. 10. Complete digestive system.= 2 openings‚ mouth and anus connected by the food tube. 11. Dioecious= Seperate sexes; each organism produces either male or female gametes‚ but not both 12.Parasitism= Form of a symbiotic relationship where one organism is living at the expense of another. Identify the phulum to which each of the following belong: 12. Schistosoma mansoni (blood fluke) Platyhelminthes 13. Clinorchis sinensis (human liver
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Ecology Biology Notes GCE Study Buddy Ecology ● Ecology is the study of interactions among organisms‚ and between organisms and the physical and chemical factors making up their external environment ● Ecologists study both the non-living (abiotic) or physical environment‚ and the living (biotic) environment. Physical environment ● Amount of light ○ Light intensity affects the distribution and growth of both plants and animals ● Amount of water ○ Xerophytes are plants which can
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Bio1. Explain the significance of the principle of competitive exclusion. ............................................................................................................................................... ............................................................................................................................................... .......................................................................................................................................
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Population Ecology A population is a group of individuals of the same species living in an area Population ecology focuses on factors affecting population size over time Population ecology Studies species interactions Predation Competition Parasitism What is an exotic species? ……….and can it be harmful? Organismal Ecology Organismal ecology studies how an organism’s structure‚ physiology‚ and (for animals) behavior meet environmental challenges Organismal ecology includes physiological
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Dracula: The Metaphor for Late Victorian-Crisis Jarae Comstock Reinhardt University This paper was prepared for IDS 306 for Dr. Little Dracula: The Metaphor for Late Victorian-Crisis Bram Stokers‚ Dracula‚ from the late-Victorian era‚ is one of the best stories of vampire folklore. Dracula was tall‚ dark‚ handsome‚ and mysterious with immense sexual character. His snow white teeth which outlined his rosy red lips made us fantasize of him and ultimately become obsessed. The overwhelming
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