Which one of these can be classified as an animal
a) bacteria
b) yeast
c) protozoan

Which is an advantage of subdividing science into different areas?

No matter what energy transformation we discuss, we know that no energy transfer is 100% efficient. you are about to enter a bicycle rave. you have trained extensively and eaten well to maximize your energy input throughout the bicycle race. you know that some of your kinetic energy will become wasted energy in the form of heat. what is the source of the heat energy and how can you minimize it to maximize the efficiency of your performance in the race? a) you are the source of the heat energy. you can minimize the heat energy but selecting the appropriate clothes to wear. b) air resistance is the source of he heat energy. you can minimize the air resistance by your position while riding the bicycle. c) friction is the source of the heat energy. you can minimize the friction by lubricating all appropriate parts and keeping the tires well inflated. d) kinetic energy is the source of the heat energy. you can reduce the production of heat energy but minimizing the energy you expend to race on the bicycle.

Aschool bus takes 20 minutes to reach school from your house. if the average velocity of the bus is 15.0 km/h to the west, the displacement from your house is: a. 5 km to the west c. 5 km to the east b. 300 km to the west d. need more information