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 most unusual places of all: other planets. The other one is “These organisms are so different from anything we know”. What it says in the article to back this up is “these organisms may live for an astonishingly long time — perhaps millions of years. The clay they call home settled onto the ocean floor 86 million years ago. They may be tens‚ or hundreds‚ or thousands‚ or even millions of years old‚ he says. These organisms need oxygen and nutrients to survive. Most of their food drifts down from
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there been advancements in technology in both the fields of medicine‚ and science that have made it possible to see in side the human body. Unfortunately this still is not enough. The testing must be done on a living organism. Depending on the type and purpose of the test‚ the organism (man or animal)
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Animals to be classified: Hypocalymma Angustifolium‚ Hypocalymma Cordifolium‚ Xerochrysum Bracteatum‚ Xerochrysum Viscosum‚ Pteropus Poliocephulus‚ Petaurus Australis‚ Tachyglossus Aculeatus‚ Perameles Gunnii. Has roots‚ leaves and/or flowers? Yes (therefore Flora species) No (therefore Fauna species) Average height above 100 centimetres? Is the specimen nocturnal‚ its torso covered in fur? Yes No Yes Heart shaped leaves borne opposite each other and/or Newly grown stems
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ENVIRONMENT The word ’environment’ is derived from the French word environ‚ which means ’to surround’ or ’around’ and is referred to as the external conditions in which an organism lives. Environment thus‚ can be defined as the sum total of physical‚ chemical and biological factors‚ which act upon an organism or an ecological community and determine its form and nature of survival. Animate and inanimate objects together constitute the natural environment making even human beings a part of the
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Key Terms (Bio3_Exam3) Amniote – A group of organisms including reptiles‚ mammals and birds whose offspring develop initially internally. Body Cavity – A fluid or air filled space located between the digestive tract and the outer body wall. Also known as a coelom. Body Plan – Particular set of morphological and developmental traits integrated into a functional whole. Bottom–up Regulation – The study of how applying a pressure to the base of a food chain affects the links above it. Carnivorous
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in nearly all living organisms‚ is the acid that carries genetic information. RNA- Ribonucleic acid (RNA)‚ is an acid that is present in all living cells‚ it’s main role is to act as messenger and carry instructions from DNA fro controlling the synthesis of proteins. What are Eukaryotic Cells and Eukaryotic Organisms? A eukaryotic cell is a cell that contains complex organelles like nuclei or mitochondria enclosed within a membrane and eukaryotic organisms are organisms that are made up of
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into more than one kingdom? In the early days of biology‚ all organisms were classified as either plants or animals. Single-celled eukaryotic organisms such as algae and Paramecium were assigned to one of the kingdoms according to whether they are photosynthetic or not. Fungi and prokaryotes were grouped with plants‚ because fungi are sedentary and prokaryotes have cell walls. A five-kingdom scheme was devised because some organisms don’t fit well into a two-kingdom system of classification. The
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Observing the Characteristics of Life In this activity‚ you’ll identify some observable characteristics (some not) of life in videos of various organisms and describe those characteristics. Review Remember that ALL living organisms are made up of CELLS! What are seven characteristics of living things? 1. Movement 2. Reproduction 3. Sensitivity 4. Growth 5. Respiration 6. Nutrients 7. Excretion If your teacher is displaying the
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