general knowledge Online Quiz - 4320

Fingerprints begin to form on a fetus around the 10-12 week mark (approximately 3 months). The fingerprint patterns (dermatoglyphics) develop during the first trimester and are fully formed by the end of the third month.

Babies are born with approximately 300 bones, which is more than the 206 bones in adults. Many of these bones fuse together as the child grows - for example, the skull bones separate to allow birth passage, then fuse later.

Red blood cells (erythrocytes) have an average lifespan of approximately 120 days. After this period, they are removed from circulation by the spleen and liver, and new RBCs are continuously produced in bone marrow.

The skin is the largest organ in the human body. It covers the entire body surface with an area of approximately 20 square feet and weighs about 6 pounds in an average adult, making it larger than any internal organ.

Every person does have a unique tongue print. Like fingerprints, the tongue contains unique geometric patterns and friction ridges (papillae) that differ between individuals, making tongue prints potentially useful for biometric identification.

Picnik was a photo editing service. If this question refers to when Google acquired or shut down Picnik, March 2010 is the correct timeframe. Google acquired Picnik in 2010 and later shut it down in 2012, integrating features into Google+.

Deja (likely referring to a tech service or acquisition) dates to February 2001 according to the question. The question is unclear about which specific 'Deja' service this refers to - possibly Deja News (Usenet archive) or another service.

Picasa was a photo organizing application that Google acquired in July 2004. Google later integrated Picasa features into Google Photos and discontinued the Picasa application in 2016. Picasa was popular for digital photo management in the 2000s.

Android was acquired by Google in August 2005. Android was founded in 2003, and Google's acquisition laid the foundation for Android to become the world's most widely used mobile operating system. The first Android phone launched in 2008.