agenesis

Table of Contents

Introduction References & Edit History Related Topics

Discover

Internet http://www blue screen. Hompepage blog 2009, history and society, media news television, crowd opinion protest, In the News 2009, breaking news

Who Invented the Internet?

Poker game. Card game. Royal Flush in poker. Hearts suit gambling

Poker Hands Ranked

US Marines firing at Fallujah, Iraq, during the Second Battle of Fallujah in November 2004. Operation Iraqi Freedom, Iraq War.

Timeline of the 2000s

Periodical Cicada, Adult, Magicicada spp. Requires 17 years to complete development. Nymph splits its skin, and transforms into an adult. Feeds on sap of tree roots. Northern Illinois Brood. This brood is the largest emergence of cicadas anywhere

Why Do Some Cicadas Appear Only Every 17 Years?

Gutzon Borglum. Presidents. Sculpture. National park. George Washington. Thomas Jefferson. Theodore Roosevelt. Abraham Lincoln. Mount Rushmore National Memorial, South Dakota.

9 Memorials and Monuments in the United States

Aspirin pills.

7 Drugs that Changed the World

Berries and leaves of the bittersweet nightshade (Solanum dulcamara) plant. Poisonous plant

7 of the World’s Deadliest Plants

agenesis: Related Content

Written and fact-checked by The Information Architects of Encyclopaedia Britannica

Topics

atresia and stenosis amelia anencephaly cyclopia anophthalmia meromelia phocomelia Potter’s syndrome hydranencephaly congenital disorder neural tube defect fetal alcohol syndrome Zellweger syndrome hereditary spherocytosis monster cephalic disorder cleft palate congenital adrenal hyperplasia pseudohermaphroditism congenital heart disease

Quiz

44 Questions from Britannica’s Most Popular Health and Medicine Quizzes

full human skeleton

Diseases, Disorders, and More: A Medical Quiz

A Yorkshire terrier dressed up as a veterinarian or doctor on a white background. (dogs)

A Visit with the Word Doctor: Medical Vocabulary Quiz