IMPACT 3 - UNIT 5 - REVIEW

Physical __________ made birds better fliers.

• pilot

• adaptations

• evolve

• descends

• flight

All species __________ over time.

• pilot

• adaptations

• evolve

• descends

• flight

A helicopter __________ slowly when it lands.

• pilot

• adaptations

• evolve

• descends

• flight

Insects were the first to develope __________ .

• pilot

• adaptations

• evolve

• descends

• flight

A __________ controls an airplane.

• pilot

• adaptations

• evolve

• descends

• flight

By the time flight developed in pterosaurs, insects had been flying for millions of years.

Which happened first?

• Pterosaurs flew

• Insects flew

Otto Lilenthal ______ with gliders and flight for several years already when the Wright brothers achieved powered flight for the first time in 1903.

• had experimented

• had been experimenting

Flight ______ in insects before it developed in pterosaurs.

• had been developing

• had developed