True or False No. 10

Nalaxone is a chemical that when delivered to the brain can block the natural endorphins which are responsible for the ecstatic emotional responses experienced while listening to music.
True or False?

‘Monkey’s have a strong taste for coffee, tea, and liquor, and smoke tobacco with great pleasure.’ **
True or False?

* Human speech perception relies primarily on the acoustic content of the sounds produced by the voice, and less on cognitive associations, such as expectation and second-guessing.
True or False?

The human brain is the most complex system in the known universe.
True or False?

In the British Zoological Gardens, there was ‘a baboon who always got into a furious rage when his keeper took out a letter or book and read it aloud to him; and his rage was so violent that on one occasion he bit his own leg till the blood flowed.’ **
True or False?

* Rules of every spoken language tend toward a compromise between brevity and redundancy in order to satisfy the conditions of both speaking and listening.
True or False?

Flowering plants, which are only 150 million years old, provide 80 per cent of the human food chain.
True or False?

Ants have enough of a memory that they recognize their fellow ants after a separation of 4 months.
True or False?

Henry David Thoreau was the first American field ecologist to be influenced by Darwin’s theory of natural selection and adaptation.
True or false?

99 per cent of all species that have ever existed are now extinct.
True or False?

** (excerpt from The Descent of Man by Charles Darwin)

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