------------------------------------------------- LECTURE ONE NOTES Introduction General Biology:- Biology as a natural science concerned with the study of life and living organisms‚ including their structure‚ function‚ growth‚ origin‚ evolution‚ distribution‚ and taxonomy. It is a vast subject containing many subdivisions‚ topics‚ and disciplines. Among the most important topics as contained in Biology are five unifying principles
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things or organisms provide each other with substances necessary for life‚ and a proper balance between plants and animals is needed to maintain life (1‚ p.246d). AEcology is the study of interrelationships of organisms to one another and to the environment@ (2‚ p.121). AThe word AEcology@ comes from the Greek words Oikos - house‚ and Logos - the way a subject is spoken about or treated. Ecology is a subject that tells about the Ahouses@ of living things‚ in other words the study of how organisms interact
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o / ► Chapter 01 Quiz Started on Saturday‚ September 8‚ 2012‚ 05:46 PM Completed on Saturday‚ September 8‚ 2012‚ 05:57 PM Time taken 11 mins 17 secs Grade 9.00 out of a maximum of 10.00 (90%) Question 1 Correct Mark 1.00 out of 1.00 Flag question Question text Many insects do not see into the red color-range and as a result‚ many insect-pollinated flowers are colors other than red (e.g.‚ purple and yellow). This flower coloration would be considered a Select one: a. adaptation.
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• PHOTOSYNTHESIS: • Is a process used by plants and other organisms to use light energy usually the sun ‚ to make sugar molecules. • The result of photosynthesis is sugar which is called CARBOHYDRATES PRODUCERS‚ CONSUMERS‚ DECOMPOSERS • Producers: is an organism that makes its own food. • Consumers: is organisms that get their energy by eating other organisms. • Decomposers: there organisms that get there food by breaking down organisms. • Cellular Respiration: The process of breaking down food
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degree two Cubic – a polynomial of degree three Quartic – a polynomial of degree four Quintic – a polynomial of degree five Degree – is the highest exponents or the highest sum of exponents of the variables in a term A population is all the organisms that both belong to the same group or species and live in the samegeographical area. In ecology the population of a certain species in a certain area is estimated using the Lincoln Index. The area that is used to define a sexual population is such
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Abstract: : The purpose of studying the biological organisms in the Mpenjati estuary-beach system is to distinguish between organisms and estimate diversity within the estuary found at different locations along the estuary-beach profile in accordance with factors affecting the daily routines of these marine life and other aspects in which these organisms concur with. The organisms found in these waters play an important role in the ecosystems they function in therefore it is imperative to seek a
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true? A cell is _____. A) only found in multiples of two‚ because single cells cannot exist independently B) always between 200 and 500 micrometers in diameter C) characteristic of eukaryotic but not prokaryotic organisms D) characteristic of both prokaryotic and eukaryotic organisms Answer: D Reference: Section 1.4 Bloom’s Taxonomy: Level 1 Knowledge 2) How does a scientific theory differ from a scientific hypothesis? A) Theories are proposed to test scientific hypotheses. B) A theory
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chemical processes occur in various living organisms. In biology you learn about living organisms and their composition. Organisms are alive because of chemistry. Chemistry is the one science in which all the other sciences are based. No matter what you are studying in biology‚ be it plants‚ animals‚ microbiology‚ etc.‚ in order to fully understand it‚ you need to be able to understand the chemical reactions that need to take place in order for whatever organism you are studying to have life. Life
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The regulation of internal environment by animals: homoeostasis All living organisms have ideal environmental conditions for survival and reproduction. Animals have an internal environment as well as the external environment they are living in. If their internal environment deviates too much from the ideal they may experience reduced function or even die. Homoeostasis is the adapted ability of an organism to regulate its internal environment to deal with changes in the external environment. (Raven
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which comprise the vast majority of any organism’s gene repertoire‚ are common between Archaea and Bacteria. In terms of their cell structures‚ Archaea are indistinguishable from Gram-positive bacteria. Within prokaryotes‚ only these two groups of organisms are bounded by a single unit lipid membrane‚ and they generally contain a thick sacculus of varying chemical composition. Some Archaea also show positive Gram staining and a few of them‚ similar to certain Gram-positive bacteria‚ do not contain any
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