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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Biology Fall 2011-2012 Exam Review [pic][pic] The graphs above show the results of two separate experiments on the same species of plant. Students now want to determine how the use of rainwater or bottled water affects the growth of this plant. Which conditions should be used for optimal growth as the two water types are tested? Answer:_______________________________________________________________________________________________________________ WHY?____________________________________
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5. 1. 1 Define species‚ habitat‚ population‚ community‚ ecosystem‚ and ecology. Species – A species is a group of organisms with similar characteristics‚ which can interbreed and produce viable‚ fertile offspring. Habitat – A habitat is the environment in which a species normally lives or the location of a living organism. Population – A population is a group of organisms of the same species‚ who live in the same area at the same time. Community – A community is a group of populations
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of the contaminants. These characteristics make bioremediation techniques potentially ideal for detoxification of chemical pollutants. However‚ there are a number of problems which are encountered with bioremediation as well. First‚ in order for organisms to successfully reduce pollutant levels‚ their population must
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web? A.This species is an important food source for many other species. B.That species preys on many other species. C.That species has a limited role in the food web. D.That species is endangered. Answer Key: A Feedback: The more connections an organism has the more important it is in the Food Web. Sort of like Facebook. Question 3 of 15 6.66 Points In the food web‚ what may indicate that a species is vulnerable to becoming endangered or extinct? Think about top-level consumers. Refer to pgs
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passing of energy in the form from one organism to another. 2. Producer: A green plant able to make its own food by photosynthesis. 3. Consumer: An organism that depends on other organisms for food needs. 4. Herbivore: A consumer that eats only plant tissue. 5. Carnivore: A consumer that eats only plant tissue. 6. Omnivore: A consumer that eats plant and animal tissue. 7. Pyramid of Numbers: A model that shows the decreasing numbers of organisms as you move through a food chain
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phenotype. The zebrafish is a small (4–5 cm)‚ tropical‚ freshwater teleost fish (ray-finned)‚ and originally identified in the Ganges River in northeastern India. Development in the zebrafish is very fast compared to other vertebrate developmental model organisms. The embryos develop quickly in a transparent egg by making it possible to observe the entire process of vertebrate development. Organogenesis in zebrafish is rapid‚ and most organ primordia have formed by 24 hours of development. The 24-hour zebrafish
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the biosphere or an ecosystem? A community or a population? An organism or an organ system? A cell or a molecule? 3. Do organisms interact with their environment? If so‚ give an example. What are two major processes in the dynamics of an ecosystem? 4. When energy changes from one form to another what form is often released into the environment? Which type of organism captures the sun’s energy? 5. Where in our bodies is chemical
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Life on Earth 1. Analysis of the oldest sedimentary rocks provides evidence for the origin of life. Identify the relationship between the conditions on early Earth and the origin of organic molecules. - Conditions of early Earth: Massive oceans existed Only small landmasses above the surface of the water No ozone layer Large amounts of radiation reached the Earth No free oxygen in the air Large amounts of volcanic activity; heat‚ ash‚ dust and gases into atmosphere Violent electric
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