10. If pollution can be identified specifically as coming from a single pipe or series of pipes, it is
said to come from a
a. Non-point source
b. Single point source pollutant
c. Factory
d. Hard identifiable source

Are salt and soap nutrients or toxins for yeast? explain.

Which of the following factors would not contribute to allopatric speciation? a) a population becomes geographically isolated from the parent population.b) the separated population is small, and genetic drift occurs.c) the isolated population is exposed to different selection pressures than the ancestral population.d) different mutations begin to distinguish the gene pools of the separated populations.e) gene flow between the two populations is extensive.

Which measure of an earthquake depends on how close you are to the focus?