(redirected from positive chemotaxis). Also found in: Dictionary/thesaurus, Medical, Wikipedia. see taxis taxis, movement of animals either toward or away from a stimulus, such as light (phototaxis), heat (thermotaxis), chemicals (chemotaxis), gravity (geotaxis), and touch (thigmotaxis). The turning movements of plants in response to stimuli are called tropisms...... Click the link for more information. .
USPS first class mail takes anywhere from 3 days to 14 days depending on when they process it, if the address is legible, etc.The average seems to be 7-10 days as of lately, unless you are shipping it within the same city.f it's international shipping, the only first class option is airmail which has no tracking and can take from 7-21 days. If you go with priority international mail, it's much more expensive - $15 and up-and takes around 7 days.
first class priority international is a usps trademark note the cost of postage will appear on all international shipping labels size requirement for packages is up to 24 inches long and up to 36 inches in combined length height and depthriority mail international offers 6 10 day service to most international destinations priority mail international is a usps trademark note the cost of postage will appear on all international shipping labels the maximum weight for flat rate envelopes and small boxes is 4 pounds