پاورپوینت بيولوژي ،اكولوژي كژدم ها وپيشگيري از گزش آنها

لینک دانلود و خرید پایین توضیحات
دسته بندی : پاورپوینت
نوع فایل :  powerpoint (..ppt) ( قابل ويرايش و آماده پرينت )
تعداد اسلاید : 64 اسلاید

 قسمتی از متن powerpoint (..ppt) : 
 

بنام خداوند جان و خرد بيولوژي ،اكولوژي كژدم ها و پيشگيري از گزش آنها
D.R.D
Scorpions, which are grouped in the phylum Arthropoda .
scorpion has a flattened elongated body and can easily hide in cracks.
scorpion has a segmented tail that has a poisonous spike at the end.
Scorpion stings are a major public health problem in many underdeveloped tropical countries, especially Africa, South India, the Middle East, Mexico, and South Latin America.
The estimated annual number of scorpion stings is 1.2 million.
An estimated 5000 deaths occur annually from scorpion stings worldwide
Distribution
Scorpions have a world-wide distribution, being found in deserts, grasslands, forests, intertidal zones (coast) and mountains.