the association of a number of interrelated populations belonging to different species in a common environment. The populations are that of animal community‚ plant community and microbial community. Biotic community is distinguished into autotrophs‚ heterotrophs and saprotrophs. PROCESSES OF ECOSYSTEM The transformations of energy in an ecosystem begin first with the input of energy from the sun. Energy from the sun is captured by the process of photosynthesis. Carbon dioxide is combined with
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Protista - single-celled‚ colonial eukaryotes‚ contains nucleus and other membrane bound structures‚ mobile Plantae - photosynthetic‚ multicellular autotrophs‚ cellulose cell walls‚ contain chlorophyll Fungi - multicellular heterotrophs‚ digest and internalize food from their surroundings‚ immobile‚ chitin cell walls Animalia - multicellular heterotrophs‚ internal digestive system Chapter 2: Chemical Basis of Life CarbonHydrogenNitrogenOxygenPhosphorusSulfur Atom - fundamental unit of matter Element
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Cuscuta (Amarbel) is a host.[ ] 4. Lichens‚ an alga and a fungus show symbiotic relationship. [ ] 5. In desert plants‚ green stems carry out photosynthesis.[ ] III) Define the following 1. Autotrophs 2. Saprotrophs 3. Heterotrophs 4. Nutrition IV) Diagrams : 1. Cell 2. Photosynthesis in plants. Chapter 2 : Nutrition in Animals Fill in the blanks : 1. The mode of taking food into the body is called ___________________ 2. In the process of ________________
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by its mix of interacting biotic and abiotic components. • Producers/ Autotrophs-organisms that use the energy of the Sun to produce usable forms of energy • photosynthesis- the process by which producers use solar energy to convert CO2 and water into glucose. • cellular respiration- the process by which cells convert glucose and oxygen into energy‚ carbon dioxide‚ and water. • Consumers/ Heterotrophs- An organism that must obtain its energy by consuming other organisms •
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Lab 7 – Cellular Respiration Objectives: • To be able to define cellular respiration and fermentation. • To give the overall balanced equations for aerobic respiration and alcoholic fermentation. • To distinguish between inputs‚ products‚ and efficiency of aerobic respiration and those of fermentation. • Understand the relationship between respiration and photosynthesis. Note: You should perform experiments as described in this handout‚ which are adapted from Starr and
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Lupita Garica Mr. Zarate 8/29/14 Period 7 Are Viruses Alive? For many years there have been numerous controversies over whether a virus should be classified as living or nonliving. It is believed that viruses are considered nonliving because they lack a substantial amount of qualities to be classified a form of life and they are incapable of carrying out all life processes. For example‚ some characteristics that would justify a virus being nonliving would be that they are acellular: they are not
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The “Big Ideas” From the Biology State Standards Chandra A. Wilkemeyer Warren County High School In biology‚ as with many other subjects‚ educators are faced with a plethora of information to teach from Virginia Science Standards of Learning (SOL)‚ and a limited amount of time to do so. According to Marzano and Kendall’s study (as cited in Tomlinson and McTighe‚ 2006)‚ spending only 30 minutes of instructional time on each identified benchmark would require 15‚465 hours of instructional time
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▪ Genome distance and common ancestors Genome: The complete DNA sequence for a particular organism or individual ▪ What are the 3 domains? 1)archaea ‚bacteria‚ species ▪ Heterotrophs vs. autotrophs Heterotrophs: (humans) An organism that requires preformed organic molecules as food Autotrophs: (plants) An organism that is capable of living exclusively on inorganic materials‚ water‚ and some energy source such as sunlight (photoautotrophs) or chemically reduced matter ▪ What
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This chapter covers Ecology and‚ as such‚ has a vocabulary all its own – which is often examined. Environment: All the organisms (biotic) and the conditions (abiotic) which exist in an area Abiotic factors: all the non-living factors in an environment‚ such as rainfall‚ temperature‚ soil. Biotic factors: All the living organisms in an area – such as producers‚ predators and parasites. Population: All the members of one species living in an area Community: The total of all the populations living in
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Monera- Single celled prokaryotes;bacteria Protista - Mostly single celled eukaryotes; Photoautotrophs (algae) and heterotrophs (protozoa) Fungi-Multicellular eukaryotes that feed by extracellular digestion and absorption Heterotrophs: includes decomposers‚ many pathogens and parasites Plantae-Multicellular photosynthetic autotrophs producers Animalia- Diverse multicellular heterotrophs Range from sponges to vertebrates 2. Who developed the binomial system of nomenclature (genus and species)? Answer:
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