Sort the different barriers into their modes of reproductive isolation.
a snail with a flat disc-like shell
will not be able to mate with a
snail having a conical shell.
the reproductive organs of
male bush babies do not
match with the reproductive
organs of females of other
bush baby species
the mating call of a cricket is not
recognized by a cricket of other
species
the signals sent by a male firefly
are not recognized by the female
firefly of other species.
mechanical isolation
behavioral isolation
for

For the strategies below, decide whether they are best described as demand-side solutions or supply-side solutions to meeting human needs for fresh water. remember that a demand-side solution reduces demand for fresh water, whereas a supply-side solution increases the supply of fresh water. (a) damming a river to create a reservoir (b) desalinating seawater (c) a nation invading a neighboring country to access their rivers (d) raising water prices for consumers and businesses (e) providing tax breaks for companies that use less water (f) replacing inefficient irrigation with more-efficient drip irrigation to grow crops (g) requiring low-flow showerheads in all new homes