Student Resources—746
Student Resources—746
Student Resources—746
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Credits<br />
Credits<br />
Assoc.; 127 Van Bucher/Science Source/Photo Researchers;<br />
129 Jeffrey Howe/Visuals Unlimited; 130 Roy Johnson/Tom<br />
Stack & Assoc.; 131 (l)Warren Faidley/Weatherstock,<br />
(r)Robert Hynes; 132 NASA/Science Photo Library/Photo<br />
Researchers; 133 Fritz Pölking/Peter Arnold, Inc;<br />
140 (bkgd)Erik Rank/Photonica; courtesy Weather<br />
Modification Inc., 141 (l)George D. Lepp/Photo Researchers,<br />
(r)Janet Foster/Masterfile; 142 Ruth Dixon; 146–147 Andrew<br />
Wenzel/Masterfile; 151 (l)William Leonard/DRK Photo,<br />
(r)Bob Rowan, Progressive Image/CORBIS; 152 John<br />
Shaw/Tom Stack & Assoc.; 153 (tl)David Hosking/CORBIS,<br />
(tr)Yva Momatiuk & John Eastcott/Photo Researchers,<br />
(b)Michael Melford/The Image Bank/Getty Images;<br />
154 (t)S.R. Maglione/Photo Researchers, (c)Jack Grove/Tom<br />
Stack & Assoc., (b)Fritz Pölking/Visuals Unlimited; 155 Zig<br />
Leszczynski/Animals Animals; 157 (l)Jonathan Head/AP/<br />
Wide World Photos, (r)Jim Corwin/Index Stock; 159 (t)A.<br />
Ramey/PhotoEdit, Inc., (b)Peter Beck/Pictor; 160 Galen<br />
Rowell/Mountain Light; 164 John Bolzan; 165 Chip & Jill<br />
Isenhart/Tom Stack & Assoc.; 167 Matt Meadows, Doug<br />
Martin; 170 Alberto Garcia/Saba; 171 Steve Kaufman/DRK<br />
Photo; 176–177 NASA; 178 NASA/JPL; 179 Jerry Schad/<br />
Photo Researchers; 184 187 Lick Observatory; 189 CORBIS;<br />
191 (tr)NASA, (bl)Stephen Frisch/Stock Boston/<br />
PictureQuest; 192 NASA; 193 Timothy Fuller; 195 NASA/<br />
JPL/Northwestern University; 196 (tl)NASA/JPL, (br)Dr.<br />
Timothy Parker/JPL; 198 (l)CORBIS, (r)Erich Karkoschka,<br />
University of AZ, and NASA; 199 NASA/JPL; 200 (t)Dr. R.<br />
Albrecht, ESA/ESO Space Telescope European Coordinating<br />
Facility/NASA (b)Frank Zullo/Photo Researchers 202 NASA/<br />
JPL 204 (t)Kauko Helavuo/The Image Bank/Getty Images,<br />
(b)Charles & Josette Lenars/CORBIS; 205 208 Lick<br />
Observatory; 209 (l)CORBIS, (c)NASA/Photo Researchers,<br />
(r)NASA/Science Source/Photo Researchers;<br />
210 Microworks/PhotoTake, NYC; 210–211 (bkgd)Doug<br />
Wilson/CORBIS; 212–213 Peter Lane Taylor/Visuals<br />
Unlimited; 213 Joanne Huemoeller/Animals Animals;<br />
214 (l)Michael Abbey/Science Source/Photo Researchers,<br />
(r)Michael Delannoy/Visuals Unlimited; 215 (tcr)A.<br />
Glauberman/Photo Researchers, (tr)Mark Burnett, (bl bcl<br />
br)Runk/Schoenberger from Grant Heilman, (others)Dwight<br />
Kuhn; 216 (t)Bill Beaty/Animals Animals, (b)Tom & Therisa<br />
Stack/Tom Stack & Assoc.; 217 Aaron Haupt; 218 David A.<br />
Northcott/CORBIS; 219 Doug Perrine/Innerspace Visions;<br />
220 Alvin E. Staffan; 222 (t)Kathy Talaro/Visuals Unlimited,<br />
(cl)courtesy Nikon Instruments Inc., (c)Michael Gabridge/<br />
Visuals Unlimited, (cr)Mike Abbey/Visuals Unlimited,<br />
(bl br)David M. Phillips/Visuals Unlimited; 222–223 (bkgd)<br />
David M. Phillips/Visuals Unlimited; 223 (tl)James W. Evarts,<br />
(tr)Bob Krist/CORBIS, (cl)courtesy Olympus Corporation,<br />
(cr)Mike Abbey/Visuals Unlimited, (bl)Karl Aufderheide/<br />
Visuals Unlimited, (br)Lawrence Migdale/Stock Boston/<br />
PictureQuest; 224 Don Fawcett/Photo Researchers; 225 (t)M.<br />
Schliwa/Visuals Unlimited, (b)Photo Researchers;<br />
226 (l)George B. Chapman/Visuals Unlimited, (r)P. Motta &<br />
T. Naguro/Science Photo Library/Photo Researchers;<br />
228 (t)Don Fawcett/Photo Researchers, (b)Biophoto<br />
Associates/Photo Researchers; 233 Dr. J.F.J.M. van der Heuvel;<br />
234 Bruce Ayres/Getty Images; 236 237 Matt Meadows;<br />
238 (t)Quest/Science Photo Library/Photo Researchers,<br />
(b)courtesy California Univ.; 240 NIBSC/Science Photo<br />
Library/Photo Researchers; 242 Michael Fogden/Earth<br />
Scenes; 243 Donald Specker/Animals Animals; 244–245 Jane<br />
Grushow/Grant Heilman Photography; 247 Bob Daemmrich;<br />
846 STUDENT RESOURCES<br />
249 (t)Runk/Schoenberger from Grant Heilman, (b)Klaus<br />
Guldbrandsen/Science Photo Library/Photo Researchers;<br />
254 (l)John Fowler, (r)Richard Hamilton Smith/CORBIS;<br />
255 KS Studios; 256 Aaron Haupt; 257 Visuals Unlimited;<br />
258 Biophoto Associates/Science Source/Photo Researchers;<br />
260 Matt Meadows; 262 Craig Lovell/CORBIS; 263 John<br />
Fowler; 264 David M. Phillips/Visuals Unlimited;<br />
265 (l)Grant Heilman Photography, (r)Bios (Klein/Hubert)/<br />
Peter Arnold; 266 (t)Runk/Schoenberger from Grant<br />
Heilman, (b)Matt Meadows; 267 Matt Meadows; 268 Lappa/<br />
Marquart; 269 CNRI/Science Photo Library/Photo<br />
Researchers; 270 Biophoto Associates/Science Source/Photo<br />
Researchers; 274–275 Zig Leszcynski/Animals Animals;<br />
276 (l)Dave B. Fleetham/Tom Stack & Assoc., (r)Cabisco/<br />
Visuals Unlimited; 278 Cabisco/Visuals Unlimited;<br />
279 (tl)Michael Abbey/Visuals Unlimited, (others)John D.<br />
Cunningham/Visuals Unlimited; 280 (l)Matt Meadows,<br />
(r)Nigel Cattlin/Photo Researchers; 281 (l)Barry L. Runk<br />
from Grant Heilman, (r)Runk/Schoenberger from Grant<br />
Heilman; 282 (l)Walker England/Photo Researchers, (r)Tom<br />
Stack & Assoc.; 283 Runk/Schoenberger from Grant<br />
Heilman; 284 Dr. Dennis Kunkel/PhotoTake NYC;<br />
285 (tl)Gerald & Buff Corsi/Visuals Unlimited, (bl)Susan<br />
McCartney/Photo Researchers, (r)Fred Bruenner/Peter<br />
Arnold, Inc.; 287 (l)John D. Cunningham/Visuals Unlimited,<br />
(c)Jen & Des Bartlett/Bruce Coleman, Inc., (r)Breck P. Kent;<br />
288 (tl)Artville, (tr)Tim Fehr, (c)Bob Daemmrich/Stock<br />
Boston/PictureQuest, (bl)Troy Mary Parlee/Index Stock/<br />
PictureQuest, (br)Jeffery Myers/Southern Stock/<br />
PictureQuest; 294 Stewart Cohen/Stone/Getty Images;<br />
296 (t)Tom McHugh/Photo Researchers, (b)file photo;<br />
297 Monica Dalmasso/Stone/Getty Images; 298 (t)Philip Lee<br />
Harvey/Stone, (b)Lester V. Bergman/CORBIS; 300 Walker<br />
England/Photo Researchers; 302 Barry L. Runk from Grant<br />
Heilman; 303 Cabisco/Visuals Unlimited; 304–305 Ron<br />
Chapple/Getty Images; 305 Geoff Butler; 306 Stewart<br />
Cohen/Stone/Getty Images; 309 (bkgd)Jane Grushow from<br />
Grant Heilman, Special Collections, National Agriculture<br />
Library; 310 Barry L. Runk From Grant Heilman;<br />
312 Richard Hutchings/Photo Researchers; 314 (l)Robert<br />
Maier/Animals Animals, (r)Gemma Giannini from Grant<br />
Heilman; 315 Raymond Gehman/CORBIS; 316 Dan McCoy<br />
from Rainbow; 317 (l)Phil Roach/Ipol, Inc., (r)CNRI/Science<br />
Photo Library/Photo Researchers; 318 Gopal Murti/<br />
PhotoTake, NYC; 319 Tim Davis/Photo Researchers;<br />
320 (t)Renee Stockdale/Animals Animals, (b)Alan & Sandy<br />
Carey/Photo Researchers; 323 Tom Meyers/Photo<br />
Researchers; 324 (t)Runk/Schoenberger from Grant Heilman,<br />
(b)Mark Burnett; 325 Richard Hutchings; 326 KS Studios;<br />
331 CNRI/Science Photo Library/Photo Researchers;<br />
332–333 B.G. Thomson/Photo Researchers; 335 Barbera<br />
Cushman/DRK Photo; 336 (l c)Tui De Roy/Minden Pictures,<br />
(r)Tim Davis/Photo Researchers; 338 (l)Gregory G. Dimijian,<br />
M.D./Photo Researchers, (r)Patti Murray/Animals Animals;<br />
339 (l)Darek Karp/Animals Animals, (r)Vonorla<br />
Photography; 340 (l)Joe McDonald/Animals Animals,<br />
(c)Tom McHugh/Photo Researchers, (r)Tim Davis/Photo<br />
Researchers; 341 James Richardson/Visuals Unlimited;<br />
342 Frans Lanting/Minden Pictures; 343 (l)Dominique<br />
Braud/Earth Scenes, (c)Carr Clifton/Minden Pictures,<br />
(r)John Cancalosi/DRK Photo; 344 (cw from top)Ken<br />
Lucas/Visuals Unlimited, John Cancalosi/DRK Photo, Larry<br />
Ulrich/DRK Photo, John Cancalosi/Peter Arnold, Inc.,<br />
Sinclair Stammers/Science Photo Library/Photo Researchers;
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