SCI

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COMP SCI TEST EXAM QUESTIONS AND ANSWERS LATEST UPDATE When using the circle() command, what value do we put inside the parentheses? The radius of the circle When Tracy is facing right, from what location does she start drawing her circle? the bottom of the circle Where does Tracy always start in the grid world? At the (0,0) coordinate in the middle of the canvas What are the dimensions of Tracy's world? 400 pixels x 400 pixels Which commands would move Tracy forward 100 pixe...

SCI-TEST EXAM QUESTIONS AND ANSWERS LATEST UPDATE what are the limitations of stellar parallax as stars get further away, the angle we measure gets smaller making it harder to measure, meaning that the error is higher Life cycle of stars (black dwarf) Nebula (a dense region in nebula begins to shrink, warm up and become a protostar) main-sequence star (star shines as nuclear reactions inside produce light and heat) red giant (star of less mass expands and glows red as it cools) ...

SCI-TEST EXAM QUESTIONS AND ANSWERS LATEST UPDATE Glaciers solid ice formations that move extremely slowly along the land surface. How are glaciers formed? form when snow remains in the same area, year-round and changes into ice. Each year, new layers of snow fall and compress the previous layers. This compression forces the snow to re-crystallize, forming grains similar in size and shape to grains of sugar. what are the two main types of glaciers? Continental Glaciers and Valley Gla...

PHYSIO SCI221 FINAL EXAM QUESTIONS AND ANSWERS LATEST UPDATE Positive and Negative Feedback Difference Positive- rare in the body, result of sudden occurrence (or amplifies a change from normal point) Example would be: -birth -blood clotting -Increases the original stimilus -milk production until baby is done feeding -uterine contractions during birth -fever (virus/bacteria, body heats self to get rid until enemy is destroyed) Negative-Most homeostatic mechanisms are negative- ef...

PL SCI 221 - MIDTERM EXAM QUESTIONS AND ANSWERS LATEST UPDATE middle lamella Non-living area between adjacent cells and is filled with Ca2+ and Mg2+ pectates (pectin; a complex set of polysaccharides) which cement adjacent cells together. Fruit ripening! pectinases enzyme that degrades pectin during the ripening process; breaks down pectin resulting in fruit softening flavr savr slow down softening process by limiting pectin breakdown; so they can leave on the vine longer and have a ...

POLI SCI TEST FINAL!! EXAM QUESTIONS AND ANSWERS LATEST UPDATE What is an electoral system? -Electoral system refers to rules that govern how people vote at elections and how votes translate into representation and government -It defines the threshold for deeming a candidate elected (rules for how people win office through a vote) What are the types of electoral systems? Three broad types: -Plurality -Majoritarian systems -Proportional representation system What is the plurality ...

BIOSCI 221 EXAM QUESTIONS AND ANSWERS LATEST UPDATE Gelatin test Measures/determines: Gelatinase Medium: Nutrient gelatin Results: (-) gels/solidifies, (+) liquefaction Reference organism: Bacillus cereus Citrate tests Measures/determines: Organisms ability to use citrate as source of carbon Medium: Simmon's citrate agar Results: (-) remains green, (+) Prussian blue Reference organism: Sprorosarcina ureae (Q) Gram + cocci, sarcina arrangement, spore former Mycobacterium sme...

SCI 221 EXAM QUESTIONS AND ANSWERS LATEST UPDATE True or false: macro- means little False True or false: the prefix for mouth is opto- False The prefix 'cyto' means cell what does the prefix 'hepa' mean? Liver Please provide the prefix for the opposite of 'thermo' Psychro True or false: Lyso- means to dissolve True True or false: a prefix for blood is hepa- False True or false: a prefix for external is encephalo- False An important structural component of the...

SCI 221 EXAM QUESTIONS AND ANSWERS LATEST UPDATE Please provide the prefix for the opposite of 'Thermo'? 1-Cardio 2-Psycho 3-Pneumo 4-None of the above 5-Physio None of the above True or False: A prefix for external is encephalo False True or False: A prefix for blood is hepa False A prefix that would be used to describe someone that studies tissues: Histo An important structural component of the body that is firm but is much more flexible than bone is known as cartilage....