(Q).
If some airplanes use propellers to move, then propellers are on some airplanes primarily to give? Answer choices: - stability - protection from bird strikes - speed - motion - engine cooling - energy - noise cancellation - power
(A).
motion

(Q).
If fungi spores can develop into bacteria without being fertilized, then what can fungi spores develop into without being fertilized? Answer choices: - shrub beds - litter - Sugar - Protein - Bacteria - graptolites - ferns - Food
(A).
Bacteria

(Q).
If some plants need a stem to survive, then what do some plants need to survive? Answer choices: - stem - oxygen - reading - overexposure - books - sodium - Water - Sun
(A).
stem