The letter b and the number 13 might appear to be very similar; in fact, the only
real difference between them is the space between the left and right sides of
each figure. who would be most likely to describe this difference as being
caused by the context of the letters or numbers that come before and after the
image?

To develop a molecular clock, you need to find which of the following?

a sequence of molecules

the rate at which changes occur in a type of molecule

how much total change has occurred in a type of molecule from two different species

how many molecules a species has

Explanation:

To develop a molecular clock, you need to find which of the following?

a sequence of molecules

the rate at which changes occur in a type of molecule

how much total change has occurred in a type of molecule from two different species

how many molecules a species has

a) which ethnic groups live in this community?

i just took test

answer; a biased sample;