Which of these is a trait that has probably been selectively bred for by human beings?
a. speed in horses
b. breathing air in dolphins
c. eating bamboo in panda bears
d. flying in bats

Match the mixture with the substance// i really need on this guys (it’s a pic btw)

For the reaction, 4 a(g) + 3 b(g) => 2 c(g), the following data were obtained at constant temperature. experiment initial[a],mol/l initial [b],mol/l initial rate, m/min 1 0.200 0.150 5.00 2 0.400 0.150 10.0 3 0.200 0.300 10.0 4 0.400 0.300 20.0 which of the following is the correct rate law for the reaction? 1. rate = k[a]2[b]2 2. rate = k[a][b] 3. rate = k[a]2[b] 4. rate = k[a][b]2

Can someone me with 3 and 4 plz. this is for masteries test.