A ball is rolled down a track at 50 cm/s. There are balanced forces acting on it. What happens to the ball's motion?

The illustration shown is an ovum, a female sex cell. a mutation in this cell may be passed to the woman’s offspring during a) birth. b) mitosis. c) dna replication. d) sexual reproduction

Is a measure of the different types of organisms in a community. question options: tertiary secondary primary none of the above

Why are common names a problem for scientist?