1. Microorganisms (1674) Microscope lens grinder Anton Van Leeuwenhoek accidentally discovers microorganisms in a drop of water. He observes sperm, bacteria and red blood cells.
2. The Cell Nucleus (1831) While studying an orchid, botanist Robert Brown identifies a structure within the cells that he terms the "nucleus."
3. Archaea (1977) Carl Woese discovers bacteria are not the only simple-celled prokaryotes on Earth. Many of the organisms classified in the new kingdom of Archaea are extremophiles.
The ancient Greek historian Thucydides called it "a war like no other"—arguably the greatest in the history of the world up to that time. The Peloponnesian War pitted Athens and her allies against a league of city-states headed by Sparta. Thucydides himself was an Athenian general in the fighting, sentenced to exile partway through the 27-year struggle, after losing a key battle to one of Sparta's leading commanders.
In this course, Professor Kenneth W. Harl draws on this masterpiece as well as other ancient sources to give you a full picture of the Greek world in uneasy peace and then all-out war in the late 5th century B.C.
In the featured episode, “Super Babies’ Dream Adventure,” Dora has a special naptime story! Once upon a time, the Super Babies were getting ready for their nap but the Dream Fairy never showed up because she was still asleep! With your help, the Super Babies try to wake the dream fairy so she can deliver all the happy naptime dreams.
Outcomes is a completely new general English course in which: • Natural, real-world grammar and vocabulary help students to succeed in social, professional, and academic settings • CEF goals are the focus of communication activities where students learn and practice the language they need to have conversations in English • Clear outcomes in every lesson of every unit provide students with a sense of achievement as they progress through the course • Grammar reference section with activities for all grammar points covered
Outcomes is a completely new general English course in which: • Natural, real-world grammar and vocabulary help students to succeed in social, professional, and academic settings • CEF goals are the focus of communication activities where students learn and practice the language they need to have conversations in English • Clear outcomes in every lesson of every unit provide students with a sense of achievement as they progress through the course • Grammar reference section with activities for all grammar points covered
Course No. 3372
