All of the following lead to variation except A.
natural selection
B.
mutation
C.
sexual reproduction
D.
speciation

What is the relation ship between structure and function in an organism

Lola needs to sign 6 invitations. using stopwatch that measures time to tenths of a second, it takes lola 5.3 seconds to sign her full name. going by the accuracy of the stopwatch, which is the most accurate determination for the number of minutes lola needs to sign all 96 invitations

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks