Polygenic traits, traits determined by more than one gene, often have phenotypes that are distributed on a bell curve. occurs when one end of the bell curve is better adapted to the environment than the other.
natural selection disrupts the because one allele of a gene is preferred over another, changing the allele frequencies over time.
the development of different species without the influence of geographical separation is called speciation.

i think that it is plants

airlines i think? or a cruise boat? does this work out for u? ?

straight probes are used primarily for measuring flow as it is approaching the test area. its geometry allows the probe to be mounted so that it is in the direct line of airflow.

passive transport is a movement of biochemicals and other atomic or molecular substances across cell membranes without need of energy input. unlike active transport, it does not require an input of cellular energy because it is instead driven by the tendency of the system to grow in entropy.

so, according to what that says, i believe it's hypertonic and hypotonic.

good luck!