The movement of gas into moist inter-cellular spaces through stomates in adaption for respiration in
a) protists
b) plants
c) grasshoppers
d) earthworms
e) none of the above

Aplane flies directly between two cities, a and b, which are separated by . from a to b, the plane flies into a headwind. on the return trip from b to a, the wind velocity is unchanged. the trip from b to a takes less than the trip from a to b. what is the airspeed of the plane, assuming it is the same in both directions

Using a pedometer, you walk 3000 steps in 20 minutes, so your speed is 150 steps/min. each of your steps is 0.7 m long. what is your speed? 150 steps/min=/s=/h

Which branches of natural science include the study of an organism that lived 10 million years ago