Â©2003 Why is there a decision to make about having mammograms to screen for breast cancer? A mammogram every two years to screen for breast cancer reduces the chance of dying from breast cancer among women aged 50 to 69 years. It is unclear if women aged 70 years and older get the same benefits. mammogram every two years to screen for breast cancer reduces the chance of dying from breast cancer among women aged 50 to 69 years. It is unclear if women aged 70 years and older get the same benefits.
Temperate grasslands are located north of the Tropic of Cancer (23.5 degrees North) and south of the Tropic of Capricorn (23.5 degrees South). The major temperate grasslands include the veldts of Africa, the pampas of South America, the steppes of Eurasia, and the plains of North America.
Temperate Grasslands are dominated by grass. This biome has some of the richest soil (in nutrients) in the world. Most people that live in this biome are farmers. The temperate grasslands in North America are called prairies.The major one in North America is called the Great Plain. Grasslands in Eurasia are called steppes. They are found in Ukraine and Russia. South America has grasslands called pampas.emperate Grasslands are dominated by grass. This biome has some of the richest soil (in nutrients) in the world. Most people that live in this biome are farmers. The temperate grasslands in North America are called prairies.