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27 Cards in this Set
- Front
- Back
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What is an extotherm? Endotherm?
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ECTOTHERM: animal that relies on interactions with the enviornment to help control body tempertaure. ENDOTHERM: animal that generates its own body heat and controls its body temperature from within
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What is homeostasis? (essay)
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process by which organisms maintain a relatively stable internal enviornment
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What is an Animal?
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Mebers of the kingdom Animalia, are multicellular, eukaryotic herterotrophs whose cells lack cell walls
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What are the 7 essential functions animals do?
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Feeding, respiration, circulation, excretion, response, movement, reprodution
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What are the there germ layers and what types of cells will they be?
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Good question.
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What are the types of symmentry organisms will have?
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Radial symmetry (think bicycle wheel) or bilateral symmetry (think human)
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What is chephalization?
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concentration of sense organs and nerve cells at the anterior, or front, end of the body.
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What is the relationshp between the degree of chephalization and the complexity of the animal? (Essay)
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In general the more complex animlas become, the more pronounced their degree of chephalization.
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What is a coelom?
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Fluid Filled body cavity lined with mesoderm
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What is Introcellular/Extracellular Digestion?
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INTROCELLULAR DIGESTION: food is digested inside the cells. EXTRACELLULAR DIGESTION: food is broken down outside the cells in a digestive cavity or tract and then absorbed into the body.
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What is the difference between gastrovascular cavity and a 2 opening digestive system?
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GASTROVASCULAR CAVITY: a digestive chamber with one opening where food enters and waste leaves. TWO OPENING DIGESTIVE SYSTEM: ???
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What are the ways organisms carry out respiration?
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Diffusion, gills, tracheal tubes, book lungs
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What is a open/closed circulatory system?
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OPEN CIRCULATORY SYSTEM: system in which blood is not always contained within a network of blood vessels. CLOSED CIRCULATORY SYSTEM: system in which blood is contained within a network of blood vessels.
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What is the difference between a single-loop and a double loop circulatory system?
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Single loop goes through the heart once (body-heart-lungs-body) while the double loops gothrough twice (body-heart-lungs-heart-body).
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What is the advantage to a double loop circulatory system? (essay)
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Because it brings the oxygen poor blood to the lungs to get more, and the oxygen rich blood to the blood to supply oxygen. (check this)
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What are the three types of ways that animals can move?
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hydrostatiz, exoskeletons, endoskeletons
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What is the kidney used for?
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organ that removes urea, excess water, and other waste products from the blood and passes them to the ureter.
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What is a food chain?
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series of steps in an ecosystem in which organism transfer energy by eating and being eaten
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Fod Web?
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network of complex interactions formed by the feeding relationships among the various orangisms in an ecosystem
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Trophic Level?
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step in a food chain or web
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producer/autotroph?
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organism that can capture energy from sunlight or chamicals and use it to produce food from inorganic compounds
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Consumer/heterotroph?
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organism that relies of other organisms for its energy and food supply.
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What are the main chaercteristics of sponges?
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multicellular, heterotrophs, have no cell walls, and contain a few specialized cells
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What is a sponge's symmetry?
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radial symmetry
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What do sponge's respiration, circulation, and excretion rely on?
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the movement through water (diffusion)
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What are choanocytes?
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Specialized cell in sponges that uses a flagellum to move a steady current of water through the sponge.
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What phyla do sponges belong to?
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Porifera
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