Title: studying organisms in an ecological habitat Aim: to determine the feeding relationships in an ecological habitat Method: * Explore ecological habitat * Make notes of features of selected habitat * Measure the seize of the area to be explored * Record the name of all organisms found in the habitat * Make note of any special features of the organisms * Note the presence of any symbiotic relations Observations and results: Tabulation of the organisms in habitat
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and two from Part - B. PART - A Invertebrate General organization (general morphology‚ mode of life adaptations life cycles and economic importance) of the following groups with special reference to the topics mentioned in each group Protozoa: Parasitism‚ conjugation and autogamy‚ medical importance. Porifera: Canal system‚ skeletal structures and their taxonomic value‚ position of porifera in the Animal Kingdom. Coelenterata: Polymorphism; measenteries corals and coral reefs. Platyhelminthes:
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flower gets pollen from a bee. http://lastoneeating.wordpress.com/tag/honeybeeflowermix/ Commensalism is a relationship in which one species benefits and the other species is neither helped nor harmed. A bird takes sap from a tree. Parasitism involves one organism living on or inside another
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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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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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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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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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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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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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