are living organisms whose cells are larger and more complex than prokaryotic cells and contain complex structures enclosed within membranes. Scientists believe that eukaryotes have evolved from prokaryotic symbiotic communities. If we use the rules of nomenclature and look at the binomial “eukaryote”‚ eu means good or with and karyon means nucleus; therefore‚ a simplified definition of eukaryotes is “with a nucleus”. a. Algae - Algae are a large and diverse group of simple organisms that can be
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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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Throughout the ages‚ nature has provided humans with sources of the essentials of life‚ including food‚ medicines and raw materials for the manufacture of clothing and shelter. Man began to explore the resources of every type on earth for their potentialities to cure ailments and interpreted their effects wisely in terms of knowledge in different branches of science prevailing at that time. Exploitation of abundantly available natural resources is vital for economic development of a country like
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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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contamination‚ living beings have created aloof and forceful barrier instruments. Host barrier components have been advanced since the primary life forms experienced each other‚ a huge number of years prior. Indeed‚ even basic unicellular living beings like microscopic organisms additionally have safeguard instruments to get secured against their pathogens (phage infection) that can cause contaminations. Intricacy of barrier instrument increments with the expanded unpredictability of body‚ following
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Biology- study of living organisms. I. History of Biology 1. Primitive Period-no use of scientific period. 2. Classical Period * Hippocrates (Father of Medicine)- he stated that diseases have natural causes and the has the power to repair itself. * Aristotle (Greatest Ancient Scientist)- excelled in making observations made the most significant biological contributions. * Galen (Greatest Biologist of Antiquity)- to study human anatomy and carried with the first physiological
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probably an amoeba-like nucleated (probably DNA in a nucleoid region not an actual nucleus) prokaryotic cell that got nutrients by phagocytosis (engulfing nutrients or other cells) Some of these unicellular amoeba-like organisms engulfed prokaryotic cells that somehow were not digested within the organism. In the process of being engulfed the smaller cells would have been wrapped in membrane from the larger cell‚ today we see double membranes in mitochondria and chloroplasts. The symbiotic relationship
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categorized under the titles cell biology‚ cell growth‚ physiology‚ and development. Regarding cell biology‚ it is important to understand that both categorize their cells as eukaryotic. The Encyclopedia Britannica defines eukaryotes as “any cell or organism that possesses a clearly defined nucleus”. While both cells have a nucleus‚ cytoplasm‚ ribosomes‚ mitochondria‚ and golgi apparatuses‚ other structures vastly differ. For example‚ a plant has a plasma membrane composed of a cell wall and cell membrane
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are composed of many cell types. A. unicellular B. acellular C. asymmetrical D. autotrophic E. multicellular 3. A/an _______ is composed of a group of similar cells that perform a particular function. A. organ B. system C. organism D. tissue E. population 4. Choose the CORRECT order (1-5) of increasing complexity/organization. A. (1) tissues‚ (2) organ systems‚ (3) cells‚ (4) organs‚ (5) organism B. (1) cells‚ (2) organ systems‚ (3) tissues‚ (4) organs‚ (5) organism C. (1) tissues‚ (2) organs‚ (3) organ
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<b>Scientific name</b> -Kingdom- Fungi‚ Phylum- Ascomycota Class- Ascomycetes Order- Saccharomycetaler‚ Family- Saccharomycetaceae‚ Genus- Saccharomyces‚ Species- Cervisiae<br><br><b>Description</b> - Yeast is a unicellular organism that lacks chloroplasts. They are so small that it can ’t be seen by the naked eye and they are so small that it would take 4000 of them lined up side by side to measure an inch. <br><br><b>Habitat</b> - Yeast lives on and is nourished by dead or living plant or animal
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