Control variables why must you use the same number of beads when you construct the second chromosome in step 1?

if u dont u wont get the right answer u always u the same beads u used before but if ur doing somthing else like the vibration with more beads added then u add more beads

when a reversible reaction is occurring in both directions at the same rate; the products and reactants do not change in concentration. a chemical reaction where the compound is broken into its constituent parts.

he is very short, and he can only reach halfway up on the elevator buttons. but on a rainy day, he has his umbrella with him, and he uses it to poke the button at the top.