Which can be concluded from a comparison of the two phylogenetic trees?
a. phylogenetic trees are not subject to change.
b. classification can change with new discoveries and evidence.
c. classification does not change with more evidence.
d. phylogenetic trees are inaccurate.

In natural selection, what is actually “selected? ” a) alleles are directly selected b) genotypes are directly selected c) phenotypes are directly selected d) entire populations are directly selected

According the inverse square law, doubling the distance from the source of the sound, a speaker, for example, will drop the sound 6 db each time. if you were standing in the back of an auditorium, 32 feet away from a speaker not using any amplification, would you be able to hear a speaker clearly? why or why not?

Construct at least two possible hypotheses for the student’s experiment.