1 / 13

The Civil War

The Civil War. History 10 By Gwen McEntee. The Civil War. History 10 By Gwen McEntee. Civil War Casualties as Motivation for Medical Progress. Photo by James F. Gibson, 1862. Gwen McEntee History 10. California Ground Squirrel. Whoa, super cute!!!.

haruki
Télécharger la présentation

The Civil War

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The Civil War History 10 By Gwen McEntee

  2. The Civil War History 10 By Gwen McEntee

  3. Civil War Casualties as Motivation for Medical Progress Photo by James F. Gibson, 1862. Gwen McEntee History 10

  4. California Ground Squirrel Whoa, super cute!!! As is typical for ground squirrels, California Ground Squirrels live in burrows which they excavate themselves. Some burrows are occupied communally. Although they readily become tame in areas used by humans, and quickly learn to take food left or offered by picnickers, they spend most of their time within 25 m of their burrow, and rarely go further than 50 m from it. California Ground Squirrels are frequently preyed on by rattlesnakes. They are also preyed on by eagles, raccoons, foxes, badgers, and weasels. Interdisciplinary research at the University of California, Davis since the 1970s has shown that the squirrels use a variety of techniques to reduce rattlesnake predation. Some populations of California Ground Squirrels have varying levels of immunity to rattlesnake venom as adults. Female squirrels with pups also chew on the skins shed by rattlesnakes and then lick themselves and their pups (who are never immune to venom before one month of age) to disguise their scent. Sand-kicking and other forms of harassment provoke the snake to rattle its tail, which allows a squirrel to assess the size and friskiness (dependent on blood temperature) of the snake.[citation needed] Another strategy is for a squirrel to super-heat and swish around its tail.[2] When hunting, rattlesnakes primarily rely on their pit organ, which detects infra-red. The hot-tail-swishing appears to convey the message "I am not a threat, but I am too big and swift-moving for it to be worth trying to hunt me." These two confrontational techniques also distract the snake from any nearby squirrel burrows containing pups.

  5. California Ground Squirrels • Major threat: rattlesnakes • Mothers chew rattlesnake skin and lick their pups to disguise their scent • Squirrels super-heat and swish their tails to intimidate snakes with infrared image

  6. Photo by Mike Parker Major Threat: Rattlesnakes • Responses: • Scent1 • Infra-red light2

  7. Reasons teenagers don’t read for pleasure • not enough time (other hobbies, homework, jobs • have to read assigned books. • Don’t see books that look interesting • Don’t see friends and family reading • Find reading difficult

  8. Why don’t teenagers read for pleasure? • Not enough time (other hobbies, homework, jobs) • Have to read assigned books • Don’t see books that look interesting • Don’t see friends and family reading • Find reading difficult

  9. Many teenagers don’t read for fun… Too little time Trouble reading …Why? No culture of reading Assignments No interesting books

  10. Bottled water is bad • 1.5 million tons of plastic used each year to bottle 89 billion liters of water. • Energy used to ship the bottled water is a waste of resources. • 90 % of water bottles are not recycled.

  11. Bottled water hurts the environment. • 90% not recycled • Landfills • Great Pacific Garbage Patch

  12. Is your water bottle here? Is your water bottle here? Photo by Jay Directo AFP Images

  13. Sources • Images: • Directo, Jay. Canoe paddling through sea of garbage. Photograph. AFP Getty Images. Independent.co.uk. 18 Feb. 2009 <http://www.independent.co.uk/‌multimedia/‌archive/‌00015/‌plastc050208_15074a.jpg>. • Facts: • Knopper, Melissa. “Bottled Water Backlash.” E - The Environmental Magazine May-June 2008: 36-39. GreenFILE. EBSCO. Abington Friends School, Jenkintown, PA. 23 Feb. 2009 <http://search.ebscohost.com/‌login.aspx?direct=true&db=8gh&AN=31967742&site=ehost-live>.

More Related