Weep weep weep free points

Technician a says after tire service work tires and wheels must be in a state of static and dynamic balance in order to avoid vibration in service. technician b says tires and wheels are balanced at the factory and do not need further balancing. who is correct?

Sorry two big valves your rpm will go down plus the smaller ones will give you more horsepower your rpm will go up the answer is b

20 pts i don't really get this xd1. what is the function in humans of the protein produced from that gene2. would you expect to find the same protein in other organisms? if so, which ones? 3. is it possible to find the same gene in two diff. kinds of organisms4. if you found the same gene in all organisms you test, what does this esuggest about the evolution of this gene in the history of life on earth? 5. does the use of dna sequences in the study of evolutionary relationships mean that other characteristics are unimportant in such studies? explain your answer. what am i supposed to do here