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Check your knowledge! Take our fun quiz for the advanced True Flight Section of the Fundamentals Chapter of our textbook! Follow the instructions and then click on the "Check it!" button for each question.

Advanced Activities: True Flight

1.	True flight was achieved between 250,000,000 to __________ years ago by the pterosaurs (Greek for feather winged lizard). (Check the correct answer.)
	650,000,000 65,000,000 6,500,000

2.	The largest of the pterosaurs was the North American Quetzalcoatlus with a wingspan of _____ feet from tip to tip. (Check the correct answer.)
	20 30 40

3.	True flight in the natural world of today is accomplished only by ___________,birds, and bats. (Check the correct answer.)
	squirrels fish insects

4.	Insects are the only animals who are able to propel themselves through the air for a sustained period of time by flapping their wings. (Check the correct answer.)
	True False

5.	The oldest known true flyers are ___________. (Check the correct answer.)
	birds bats insects

6.	Insects are the only true flyer able to fly forward, hover, and backwards. (Check the correct answer.)
	True False

7.	___________ are considered nature's perfect flying machines. (Check the correct answer.)
	birds insects bats

8.	Most birds fly below 30 feet. (Check the correct answer.)
	True False

9.	Of the nearly 4,000 mammal species on earth, _________ are the only mammals capable of powered flight. (Check the correct answer.)
	bats squirrels birds

10.	True flight in the natural world is achieved by the presence of wings. (Check the correct answer.)
	True False

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