Scientists apply the concept of a molecular clock to estimate the time two species evolved separately.

Which data are most useful for the estimation?

A. common traits of the two species
B. homologies among the two species
C. DNA sequence differences between the two species
D. DNA fingerprinting of common fossils

Up until 1938, paleontologists accepted the idea that coelacanths (an ancient fish) went extinct at the time that they last appear in the fossil record, about 80 million years ago. but in 1938, a live coelacanth was discovered off the coast of south africa that was compared to the fossil record and found to be the same species what goal of science does this discovery represent

What in scientific term why the salty popcorn causes this thirst

Which of the following statements is accurate about evolution? question 10 options: natural selection only eliminates odd individuals. evolution means that a population never has changes in its genetic frequencies. mutations are always harmful. evolution means that a population undergoes changes in its gene frequencies over time.